diff --git a/data-structure-database.md b/data-structure-database.md
index d6fdec7..1b0e5a5 100644
--- a/data-structure-database.md
+++ b/data-structure-database.md
@@ -60,7 +60,7 @@ All values are serialized as strings.
 
 | Creator type | `resourcename` | Custom args |
 |---|---|---|
-| `Cube` | `Cube` | `color`, `opacity` |
+| `Cube` | `Cube` | `color` |
 | `Sphere` | `Sphere` | `color` |
 | `Cylinder` | `Cylinder` | `color` |
 | `Cone` | `Cone` | `color` |
@@ -71,32 +71,44 @@ All values are serialized as strings.
 
 | Creator type | `resourcename` | Custom args |
 |---|---|---|
-| `Directional Light` | `Directional Light` | `color`, `intensity`, `target` (`"x,y,z"`) |
-| `Point Light` | `Point Light` | `color`, `intensity` |
+| `Directional Light` | `Directional Light` | `color`, `intensity`†, `target` (`"x,y,z"`) |
+| `Point Light` | `Point Light` | `color`, `intensity`† |
+
+> †`intensity` is the key saved in the database, but Unity reads `brightness` — the args will not apply at runtime until this mismatch is resolved. See individual object docs.
 
 ### Room access
 
 | Creator type | `resourcename` | Custom args |
 |---|---|---|
 | `Entrance` | `Entrance` | _(none)_ |
-| `Exit` | _(not implemented in save)_ | — |
+| `GoToOtherRoom` | `GoToOtherRoom` | `RoomName`, `UUID`, `color` _(❌ not yet implemented in Creator or Unity)_ |
 
 ### Streaming / media
 
 | Creator type | `resourcename` | Custom args |
 |---|---|---|
-| `Billboard` | `Billboard` | `url` (file path) |
+| `Billboard` | `Billboard` | `url` (Supabase storage path, signed at runtime) |
 | `LiveKitStream` | `LiveKitStream` | `LiveKitRoomID`, `shader`, `GreenScreenColor`, `GreenScreenBorderSettings`, `GreenScreenColorNear`, `widthcrop`, `heightcrop` |
-| `VideoWall` | `VideoWall` | `file`, `widthcrop`, `heightcrop` |
-| `Presentation` | `Presentation` | `file` |
+| `VideoWall` | `VideoWall` | `file`, `shader`, `volume`, `controls`, `autoplay`, `widthcrop`, `heightcrop` |
+| `Presentation` | `PresentationWall` | `file`, `widthcrop`, `heightcrop`, `controls` _(❌ not in Creator)_ |
 | `Camera` | `CCTVCamera` | `target` (`"x,y,z"`), `fov` (derived: `zoom * 60`) |
 
-### Other
+### Other / Props
 
 | Creator type | `resourcename` | `type` field | Custom args |
 |---|---|---|---|
 | `Text` | `Text` | `pre-defined` | `text`, `color`, `fontSize`, `fontWeight` |
-| `Custom` | _(the asset filename)_ | `user-defined` | `file` |
+| `Whiteboard` | `WhiteboardWall` | `pre-defined` | _(none — not serialized by Creator)_ |
+| `Custom` | _(asset filename)_ | `user-defined` | `file`, `color`, `material` |
+
+#### `material` values (Custom, Speaker)
+
+| Value | Shader |
+|---|---|
+| `0` | Metallic |
+| `1` | Unlit |
+| `2` | Specular |
+| `3` | FakeEmission |
 
 ### Common optional arg (all types)
 
@@ -140,3 +152,21 @@ All values are serialized as strings.
   "item-custom-args-adv": null
 }
 ```
+
+## Example — Custom (user-uploaded GLB)
+
+```json
+{
+  "position": { "x": -4.0, "y": 1.0, "z": 0.0 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale":    { "x": 1.0, "y": 1.0, "z": 1.0 },
+  "type": "user-defined",
+  "resourcename": "b83a17ab-92bf-4122-a4d0-7b467a105ae0/podest.glb",
+  "item-custom-args": [
+    { "argument": "file",     "value": "b83a17ab-92bf-4122-a4d0-7b467a105ae0/podest.glb" },
+    { "argument": "color",    "value": "#ffffff" },
+    { "argument": "material", "value": "0" }
+  ],
+  "item-custom-args-adv": null
+}
+```
diff --git a/objects/Billboard.md b/objects/Billboard.md
new file mode 100644
index 0000000..ecb4955
--- /dev/null
+++ b/objects/Billboard.md
@@ -0,0 +1,35 @@
+# Billboard
+
+### Type
+pre-defined
+
+### 3D
+The Billboard is a 4m x 2,25m opaque Plane.
+Its Origin is at the Bottom-Center.
+Spawnpoint should be {0,1,0} so its 1m above the floor.
+
+### Custom Args:
+| Key | Type | Implemented | Description |
+|---|---|---|---|
+| url | string | ✔️ | Storage path within `user_files` bucket (e.g. `uuid/image.png`). A signed URL is generated at runtime. |
+| grabable | `"true"` / `"false"` | ⚠️ (Unity missing) | Whether the item can be grabbed in-experience (common to all types) |
+
+### Special Notes:
+The Creator handles image uploads and assigns the storage path to `url`.
+The `url` value is a Supabase storage path, **not** a full URL — the runtime calls `CreateSignedUrl` to fetch the actual image.
+
+### Example:
+
+```json
+{
+  "position": { "x": 5, "y": 1, "z": -6 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale":    { "x": 1.0, "y": 1.0, "z": 1.0 },
+  "type": "pre-defined",
+  "resourcename": "Billboard",
+  "item-custom-args": [
+    { "argument": "url", "value": "b83a17ab-92bf-4122-a4d0-7b467a105ae0/Screenshot_Loading.png" }
+  ],
+  "item-custom-args-adv": null
+}
+```
diff --git a/objects/CCTVCamera.md b/objects/CCTVCamera.md
new file mode 100644
index 0000000..abcf783
--- /dev/null
+++ b/objects/CCTVCamera.md
@@ -0,0 +1,37 @@
+# CCTVCamera
+
+### Type
+pre-defined
+
+### 3D
+The CCTV Camera is a small, dark gray box.
+Origin is at the Center.
+Spawnpoint should be {0,3,0} and its target set so it already points slightly down.
+
+### Custom Args:
+| Key | Type | Implemented | Description |
+|---|---|---|---|
+| target | string `"x,y,z"` | ⚠️ (Unity only reads rotation) | World-space look-at point. Could be a moveable object in the future.|
+| fov | float (degrees) | ✔️ | Camera field of view in degrees. Derived in Creator as `zoom * 60`. |
+| grabable | `"true"` / `"false"` | ⚠️ (Unity missing) | Whether the item can be grabbed in-experience (common to all types) |
+
+### Special Notes:
+The `target` arg is documented in the database but the `CCTVCameraBehaviour` switch statement does not handle it — the camera's look direction is controlled by the object's `rotation` in the scene.
+In the Creator, `fov = zoom * 60` where zoom is 1–10.
+
+### Example:
+
+```json
+{
+  "position": { "x": 0.0, "y": 3.0, "z": 5.0 },
+  "rotation": { "x": 30.0, "y": 0.0, "z": 0.0 },
+  "scale":    { "x": 1.0, "y": 1.0, "z": 1.0 },
+  "type": "pre-defined",
+  "resourcename": "CCTVCamera",
+  "item-custom-args": [
+    { "argument": "target", "value": "0,0,6" },
+    { "argument": "fov",    "value": "140" }
+  ],
+  "item-custom-args-adv": null
+}
+```
diff --git a/objects/Cone.md b/objects/Cone.md
new file mode 100644
index 0000000..f0b26c0
--- /dev/null
+++ b/objects/Cone.md
@@ -0,0 +1,35 @@
+# Cone
+
+### Type
+pre-defined
+
+### 3D
+The Cone is 1m high with a 0.5m base radius (from Cone.glb mesh).
+Its Origin is at the Geometric Center.
+Cone is pointing upwards.
+Spawnpoint should be {0,0.5,0} so the base rests on the floor.
+
+### Custom Args:
+| Key | Type | Implemented | Description |
+|---|---|---|---|
+| color | hexColor | ✔️ | Color of the cone material |
+| grabable | `"true"` / `"false"` | ⚠️ (Unity missing) | Whether the item can be grabbed in-experience (common to all types) |
+
+### Special Notes:
+_none_
+
+### Example:
+
+```json
+{
+  "position": { "x": 4.0, "y": 0.5, "z": 0.0 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale":    { "x": 1.0, "y": 1.0, "z": 1.0 },
+  "type": "pre-defined",
+  "resourcename": "Cone",
+  "item-custom-args": [
+    { "argument": "color", "value": "#ff9900" }
+  ],
+  "item-custom-args-adv": null
+}
+```
diff --git a/objects/Cube.md b/objects/Cube.md
new file mode 100644
index 0000000..64d0840
--- /dev/null
+++ b/objects/Cube.md
@@ -0,0 +1,36 @@
+# Cube
+
+### Type
+pre-defined
+
+### 3D
+The Cube is a 1m x 1m x 1m opaque Cube.
+Its Origin is in the Geometric Center.
+Spawnpoint should be {0,0.5,0} so its on the floor.
+
+### Custom Args:
+| Key | Type | Implemented | Description |
+|---|---|---|---|
+| color | hexColor | ✔️ | Color the Material of the Cube uses |
+
+### Special Notes:
+The Cube has a collider and is a "Teleportation Area".
+
+### Example:
+
+```json
+{
+  "position": { "x": 0.0, "y": 0.5, "z": 0.0 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale":    { "x": 1.0, "y": 1.0, "z": 1.0 },
+  "type": "pre-defined",
+  "resourcename": "Cube",
+  "item-custom-args": [
+    {
+      "value": "#ff3300",
+      "argument": "color"
+    }
+    ],
+  "item-custom-args-adv": null
+}
+```
diff --git a/objects/Cylinder.md b/objects/Cylinder.md
new file mode 100644
index 0000000..d8cb0af
--- /dev/null
+++ b/objects/Cylinder.md
@@ -0,0 +1,36 @@
+# Cylinder
+
+### Type
+pre-defined
+
+### 3D
+The Cylinder is 1m high and has a radius of 0.5m. Its "standing": The round face faces upwards.
+Its Origin is in the Geometric Center.
+Spawnpoint should be {0,0.5,0} so its on the floor.
+
+### Custom Args:
+| Key | Type | Implemented | Description |
+|---|---|---|---|
+| color | hexColor | ✔️ | Color the Material of the Cube uses |
+
+### Special Notes:
+The Cylinder has a collider and is a "Teleportation Area".
+
+### Example:
+
+```json
+{
+  "position": { "x": 2.0, "y": 1, "z": 0.0 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale":    { "x": 1.0, "y": 2.0, "z": 1.0 },
+  "type": "pre-defined",
+  "resourcename": "Cylinder",
+  "item-custom-args": [
+    {
+      "value": "#0033ff",
+      "argument": "color"
+    }
+    ],
+  "item-custom-args-adv": null
+}
+```
diff --git a/objects/DirectionalLight.md b/objects/DirectionalLight.md
new file mode 100644
index 0000000..2847c8d
--- /dev/null
+++ b/objects/DirectionalLight.md
@@ -0,0 +1,42 @@
+# Directional Light
+
+### Type
+
+pre-defined
+
+### 3D
+
+No visible mesh. Represents a scene-wide directional light source (like the sun).
+The `target` arg defines the direction the light points toward.
+Default spawn height is y=5.
+
+### Custom Args:
+
+| Key       | Type                 | Implemented                    | Description                                                         |
+| --------- | -------------------- | ------------------------------ | ------------------------------------------------------------------- |
+| color     | hexColor             | ⚠️ (Creator tbd)               | Color of the light                                                  |
+| intensity | float                | ✔️                             | Light intensity (default 1).                                        |
+| target    | string `"x,y,z"`     | ⚠️ (Unity only reads rotation) | World-space look-at point the light aims at                         |
+| grabable  | `"true"` / `"false"` | ⚠️                             | Whether the item can be grabbed in-experience (common to all types) |
+
+### Special Notes:
+
+**Key name discrepancy:** The database save format uses `intensity` as the argument key. `LightManupulationBehaviour.cs` read `brightness` and "intensity".
+
+### Example:
+
+```json
+{
+  "position": { "x": 0.0, "y": 5.0, "z": 0.0 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale": { "x": 1.0, "y": 1.0, "z": 1.0 },
+  "type": "pre-defined",
+  "resourcename": "Directional Light",
+  "item-custom-args": [
+    { "argument": "color", "value": "#ffffff" },
+    { "argument": "intensity", "value": "20" },
+    { "argument": "target", "value": "0,0,0" }
+  ],
+  "item-custom-args-adv": null
+}
+```
diff --git a/objects/Entrance.md b/objects/Entrance.md
new file mode 100644
index 0000000..9308556
--- /dev/null
+++ b/objects/Entrance.md
@@ -0,0 +1,31 @@
+# Entrance
+
+### Type
+pre-defined
+
+### 3D
+An (invisible) Object marking where the player spawns when entering the Room. In the creator is marked with a small disk.
+
+Default spawn is at y=0.1 to prevent players falling through the floor.
+
+### Custom Args:
+| Key | Type | Implemented | Description |
+|---|---|---|---|
+| grabable | `"true"` / `"false"` | ⚠️ | Whether the item can be grabbed in-experience (common to all types) |
+
+### Special Notes:
+_none_
+
+### Example:
+
+```json
+{
+  "position": { "x": 0.0, "y": 0.1, "z": 0.0 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale":    { "x": 1.0, "y": 1.0, "z": 1.0 },
+  "type": "pre-defined",
+  "resourcename": "Entrance",
+  "item-custom-args": [],
+  "item-custom-args-adv": null
+}
+```
diff --git a/objects/Floor.md b/objects/Floor.md
new file mode 100644
index 0000000..17b492e
--- /dev/null
+++ b/objects/Floor.md
@@ -0,0 +1,36 @@
+# Floor
+
+### Type
+pre-defined
+
+### 3D
+The Floor is a flat plane. Default dimensions are 10m × 10m.
+Its Origin is at the Center (surface level).
+Spawnpoint should be {0,0,0}.
+
+### Custom Args:
+| Key | Type | Implemented | Description |
+|---|---|---|---|
+| color | hexColor | ✔️ | Color of the floor material |
+| opacity | float (0–1) | ⚠️ (not in Unity) | Transparency of the floor material |
+| grabable | `"true"` / `"false"` | ⚠️ | Whether the item can be grabbed in-experience (common to all types) |
+
+### Special Notes:
+The Floor uses `Plane` as its `resourcename`. The Creator type is `Floor`.
+Has a collider and is a "Teleportation Area".
+
+### Example:
+
+```json
+{
+  "position": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale":    { "x": 10, "y": 1, "z": 5.0 },
+  "type": "pre-defined",
+  "resourcename": "Plane",
+  "item-custom-args": [
+    { "argument": "color", "value": "#cccccc" }
+  ],
+  "item-custom-args-adv": null
+}
+```
diff --git a/objects/GoToOtherRoom.md b/objects/GoToOtherRoom.md
new file mode 100644
index 0000000..d8f9a09
--- /dev/null
+++ b/objects/GoToOtherRoom.md
@@ -0,0 +1,37 @@
+# GoToOtherRoom
+
+### Type
+pre-defined
+
+### 3D
+Unity: Pink 2x2 square in the floor, text hovering 1.5m above.
+Text is always facing the user.
+
+### Custom Args:
+| Key | Type | Implemented | Description |
+|---|---|---|---|
+| RoomName | string | ❌ | Display label shown on the entrance |
+| UUID | string | ❌ | UUID of the target room to teleport to |
+| color | hexColor | ❌ | Tint color of the entrance mesh, default xrwise pink|
+| grabable | `"true"` / `"false"` | ⚠️ (not in Unity yet) | Whether the item can be grabbed in-experience (common to all types) |
+
+### Special Notes:
+Only the Mesh still exists. Neither Unity nor Creatro implemented yet.
+
+### Example:
+
+```json
+{
+  "position": { "x": 7.0, "y": 0.1, "z": -2.0 },
+  "rotation": { "x": 0.0, "y": 45.0, "z": 0.0 },
+  "scale":    { "x": 1.0, "y": 1.0, "z": 1.0 },
+  "type": "pre-defined",
+  "resourcename": "Entrance",
+  "item-custom-args": [
+    { "argument": "RoomName", "value": "Demo Room Number 2" },
+    { "argument": "UUID",     "value": "a0a11a08-dc35-49e1-9808-1452b9d31be3" },
+    { "argument": "color",    "value": "#b4da55" }
+  ],
+  "item-custom-args-adv": null
+}
+```
diff --git a/objects/LiveKitStream.md b/objects/LiveKitStream.md
new file mode 100644
index 0000000..eb98d32
--- /dev/null
+++ b/objects/LiveKitStream.md
@@ -0,0 +1,44 @@
+# LiveKitStream
+
+### Type
+pre-defined
+
+### 3D
+A video display surface that streams live video from a LiveKit room.
+The LiveKitStream is a 4m x 2,25m opaque Plane.
+Its Origin is at the Bottom-Center (if controls are disabled).
+Spawnpoint should be {0,1,0} so its 1m above the floor.
+
+### Custom Args:
+| Key | Type | Implemented | Description |
+|---|---|---|---|
+| LiveKitRoomID | string | ✔️ | Name of the LiveKit room to connect to (e.g. `"Gas Station"`) |
+| widthcrop | float | ❌| Horizontal crop |
+| heightcrop | float | ❌| Vertical crop  |
+| shader | string | ✔️ | `"unlit"` / `"lit"` / `"greenscreen"` |
+| GreenScreenColor | hexColor |✔️ | Greenscreen key color |
+| GreenScreenBorderSettings | int(string) | ✔️ | Greenscreen border tolerance. 0 - 1000, default 640  |
+| GreenScreenColorNear | float (string)| ✔️ | Greenscreen color proximity. 0-2, default 0.3  |
+| grabable | `"true"` / `"false"` | ⚠️ | Whether the item can be grabbed in-experience (common to all types) |
+
+### Special Notes:
+The LiveKit token is fetched via `LiveKitURLProvider.getToken(roomName)`.
+
+### Example:
+
+```json
+{
+  "position": { "x": 5.0, "y": 1.0, "z": -6.0 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale":    { "x": 1.0, "y": 1.0, "z": 1.0 },
+  "type": "pre-defined",
+  "resourcename": "LiveKitStream",
+  "item-custom-args": [
+    { "argument": "shader",        "value": "unlit"},
+    { "argument": "LiveKitRoomID", "value": "Demo Room" },
+    { "argument": "widthcrop",     "value": "1600" },
+    { "argument": "heightcrop",    "value": "900" }
+  ],
+  "item-custom-args-adv": null
+}
+```
diff --git a/objects/PointLight.md b/objects/PointLight.md
new file mode 100644
index 0000000..3da0127
--- /dev/null
+++ b/objects/PointLight.md
@@ -0,0 +1,39 @@
+# Point Light
+
+### Type
+
+pre-defined
+
+### 3D
+
+No visible mesh. Represents an omnidirectional point light source that emits light equally in all directions.
+Default spawn height is y=2.
+
+### Custom Args:
+
+| Key       | Type                 | Implemented      | Description                                                         |
+| --------- | -------------------- | ---------------- | ------------------------------------------------------------------- |
+| color     | hexColor             | ⚠️ (Creator tbd) | Color of the light                                                  |
+| intensity | float                | ✔️               | Light intensity (default 1).                                        |
+| grabable  | `"true"` / `"false"` | ⚠️               | Whether the item can be grabbed in-experience (common to all types) |
+
+### Special Notes:
+
+**Key name discrepancy:** The database save format uses `intensity` as the argument key. `LightManupulationBehaviour.cs` read `brightness` and "intensity".
+
+### Example:
+
+```json
+{
+  "position": { "x": 0.0, "y": 2.0, "z": 0.0 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale": { "x": 1.0, "y": 1.0, "z": 1.0 },
+  "type": "pre-defined",
+  "resourcename": "Point Light",
+  "item-custom-args": [
+    { "argument": "color", "value": "#ff0000" },
+    { "argument": "intensity", "value": "50" }
+  ],
+  "item-custom-args-adv": null
+}
+```
diff --git a/objects/PresentationWall.md b/objects/PresentationWall.md
new file mode 100644
index 0000000..b198453
--- /dev/null
+++ b/objects/PresentationWall.md
@@ -0,0 +1,46 @@
+# PresentationWall
+
+A slideshow display surface. Loads a set of JPEG slides from Supabase storage and renders them in sequence.
+
+❌ Currently not in Creator
+
+### Type
+pre-defined
+
+### 3D
+
+The PresentationWall is a 4m x 2,25m opaque Plane.
+When "controls" is set to true it expands to 4m x 2,5m.
+Its Origin is at the Bottom-Center (if controls are disabled).
+Spawnpoint should be {0,1,0} so its 1m above the floor.
+
+### Custom Args:
+| Key | Type | Implemented | Description |
+|---|---|---|---|
+| file | string | ✔️ | UUID of the `Slide` record in the Supabase `slides` table. The runtime fetches `slides_count` and loads each `{storage_folder}/{i}.jpg` |
+| widthcrop | float | ⚠️ no-op in Unity| Horizontal crop|
+| heightcrop | float | ⚠️ no-op in Unity| Vertical crop|
+|controls| bool | ❌ | If Controls are enabled at the bottom of the screen, currently always true|
+| grabable | `"true"` / `"false"` | ⚠️ | Whether the item can be grabbed in-experience (common to all types) |
+
+### Special Notes:
+`file` is not a storage path — it is the `id` field of a `Slide` row in Supabase. The behaviour queries `supabase.From<Slide>().Where(s => s.id == value)` to find the slide folder and count.
+Signed URLs are generated per slide (1-hour TTL) and loaded as `Texture2D`.
+
+### Example:
+
+```json
+{
+  "position": { "x": 10.0, "y": 4.0, "z": -6.0 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale":    { "x": 1.0, "y": 1.0, "z": 1.0 },
+  "type": "pre-defined",
+  "resourcename": "PresentationWall",
+  "item-custom-args": [
+    { "argument": "file",       "value": "b83a17ab-92bf-4122-a4d0-7b467a105ae0/converted/powerpoint1" },
+    { "argument": "widthcrop",  "value": "0" },
+    { "argument": "heightcrop", "value": "0" }
+  ],
+  "item-custom-args-adv": null
+}
+```
diff --git a/objects/README.md b/objects/README.md
new file mode 100644
index 0000000..6c52e0c
--- /dev/null
+++ b/objects/README.md
@@ -0,0 +1,51 @@
+# Objects
+
+In this folder every object has a File that includes:
+- Name of that object.
+- Type of the Object ("pre-defined" or "user-defined")
+- Description of 3D representation of that object.
+- List of custom args, their type, if its implemented (✔️⚠️ ❌), and usage
+- Special Notes.
+- One or more example JSON Objects of that object.
+
+## Example:
+
+Cube.md
+```markdown
+# Cube
+
+### Type
+pre-defined
+
+### 3D
+The Cube is a 1m x 1m x 1m opaque Cube.
+Its Origin is in the Geometric Center.
+Spawnpoint should be {0,0.5,0} so its on the floor.
+
+### Custom Args:
+| Key | Type | Implemented | Description |
+|---|---|---|---|
+| color | hexColor | ✔️ | Color the Material of the Cube uses |
+
+### Special Notes:
+_none_
+
+### Example:
+
+```json
+{
+  "position": { "x": 0.0, "y": 0.5, "z": 0.0 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale":    { "x": 1.0, "y": 1.0, "z": 1.0 },
+  "type": "pre-defined",
+  "resourcename": "Cube",
+  "item-custom-args": [
+    {
+      "value": "#ff3300",
+      "argument": "color"
+    }
+    ],
+  "item-custom-args-adv": null
+}
+```
+```
diff --git a/objects/Sphere.md b/objects/Sphere.md
new file mode 100644
index 0000000..3cb0aad
--- /dev/null
+++ b/objects/Sphere.md
@@ -0,0 +1,34 @@
+# Sphere
+
+### Type
+pre-defined
+
+### 3D
+The Sphere is a 1m diameter sphere (radius 0.5m).
+Its Origin is in the Geometric Center.
+Spawnpoint should be {0,0.5,0} so it rests on the floor.
+
+### Custom Args:
+| Key | Type | Implemented | Description |
+|---|---|---|---|
+| color | hexColor | ✔️ | Color of the sphere material |
+| grabable | `"true"` / `"false"` | ⚠️ | Whether the item can be grabbed in-experience (common to all types) |
+
+### Special Notes:
+The Sphere has a collider and is a "Teleportation Area".
+
+### Example:
+
+```json
+{
+  "position": { "x": 6.0, "y": 0.5, "z": 0.0 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale":    { "x": 1.0, "y": 1.0, "z": 1.0 },
+  "type": "pre-defined",
+  "resourcename": "Sphere",
+  "item-custom-args": [
+    { "argument": "color", "value": "#ff0000" }
+  ],
+  "item-custom-args-adv": null
+}
+```
diff --git a/objects/VideoWall.md b/objects/VideoWall.md
new file mode 100644
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--- /dev/null
+++ b/objects/VideoWall.md
@@ -0,0 +1,41 @@
+# VideoWall
+
+### Type
+pre-defined
+
+### 3D
+The VideoWall is a 4m x 2,25m opaque Plane.
+When "controls" is set to true it expands to 4m x 2,5m.
+Its Origin is at the Bottom-Center (if controls are disabled).
+Spawnpoint should be {0,1,0} so its 1m above the floor.
+
+### Custom Args:
+| Key | Type | Implemented | Description |
+|---|---|---|---|
+| file | string | ✔️ | the location in storage (user_files) of the video file |
+| volume | string | ⚠️ (only Unity) | float between 0 and 1, default 1.|
+|shader | string | ✔️ | "unlit"(default),"lit","greenscreen"|
+|controls| bool | ❌ | If Controls are enabled at the bottom of the screen|
+|autoplay|bool| ⚠️ (only Unity) |if the video automaticly plays when user enters the Room|
+
+
+### Special Notes:
+The Creator handles Uploading of Videos, generating Meta-Quest compatible Videos and then assiging the id to the url field.
+
+### Example:
+
+```json
+{
+  "position": { "x": 0.0, "y": 1.0, "z": -6.0 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale":    { "x": 1.0, "y": 1.0, "z": 1.0 },
+  "type": "pre-defined",
+  "resourcename": "Cube",
+  "item-custom-args": [
+    {
+    "value": "b83a17ab-92bf-4122-a4d0-7b467a105ae0/converted/output.webm",
+    "argument": "file"
+    }
+    ],
+  "item-custom-args-adv": null
+}
diff --git a/objects/Wall.md b/objects/Wall.md
new file mode 100644
index 0000000..9882288
--- /dev/null
+++ b/objects/Wall.md
@@ -0,0 +1,34 @@
+# Wall
+
+### Type
+pre-defined
+
+### 3D
+The Wall is a flat rectangular Cube with dimensions 10m × 5m × 0.1m.
+Its Origin is at the Geometric Center.
+Spawnpoint should be {0,2.5,0} (half height above floor).
+
+### Custom Args:
+| Key | Type | Implemented | Description |
+|---|---|---|---|
+| color | hexColor | ✔️ | Color of the wall material |
+| opacity | float (0–1) | ⚠️ (not in Unity) | Transparency of the wall material |
+| grabable | `"true"` / `"false"` | ⚠️ | Whether the item can be grabbed in-experience (common to all types) |
+
+### Special Notes:
+
+### Example:
+
+```json
+{
+  "position": { "x": 0.0, "y": 2.5, "z": -5.0 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale":    { "x": 1.0, "y": 2.0, "z": 1 },
+  "type": "pre-defined",
+  "resourcename": "Wall",
+  "item-custom-args": [
+    { "argument": "color", "value": "#ffffff" }
+  ],
+  "item-custom-args-adv": null
+}
+```
diff --git a/objects/WhiteboardWall.md b/objects/WhiteboardWall.md
new file mode 100644
index 0000000..c932b84
--- /dev/null
+++ b/objects/WhiteboardWall.md
@@ -0,0 +1,32 @@
+# WhiteboardWall
+
+### Type
+The VideoWall is a 1,8m x 0,9m opaque Plane.
+Its Origin is at the Bottom-Center.
+Spawnpoint should be {0,1,0} so its 1m above the floor.
+
+
+### 3D
+An interactive whiteboard surface that users can draw on collaboratively.
+
+### Custom Args:
+| Key | Type | Implemented | Description |
+|---|---|---|---|
+| grabable | `"true"` / `"false"` | ⚠️ | Whether the item can be grabbed in-experience (common to all types) |
+
+### Special Notes:
+**Not implemented in save.** The Whiteboard is not serialized to the database JSON by the Creator. It can be placed in the scene but its state will not persist between sessions.
+
+### Example:
+
+```json
+{
+  "position": { "x": 14.0, "y": 1.0, "z": -6.0 },
+  "rotation": { "x": 0.0, "y": 0.0, "z": 0.0 },
+  "scale":    { "x": 1.0, "y": 1.0, "z": 1.0 },
+  "type": "pre-defined",
+  "resourcename": "WhiteboardWall",
+  "item-custom-args": [],
+  "item-custom-args-adv": null
+}
+```