How to install Fab Bridge?
Go to Edit > Preferences then to the Add-ons tab. Click Install.
Choose the downloaded zip and click Install Add-on.
After the installation is complete it will show up in the add-on list. Enable the add-on by ticking the checkbox.
How to show On-Screen Key?
Toggle the overlay from any supported editor's overlay panel, from the 3D View > Sidebar (N) > View tab, or with the keyboard shortcut Shift+Alt+C (configurable in the add-on preferences). When the toggle is left on, the overlay starts automatically the next time Blender launches.
Enable it from the guides overlay with 3D View > Overlays > Guides > On-Screen Key, or from each editor's own overlay dropdown — the overlay is drawn per editor region.
What the overlay can show.
| Keys | Letters, digits, F1–F24, numpad, punctuation, arrow and navigation keys, modifiers and media keys |
| Mouse | Left, middle and right buttons with click, drag and double-click variants, plus extra buttons 4–7 |
| Scroll | Wheel up and down; rapid scrolls in one direction group into a single entry |
| Other devices | Trackpad gestures (pan, rotate, zoom) and NDOF devices |
Held mouse buttons stay lit while pressed, and the overlay follows the editor under the mouse so it is always drawn where you are working. Use Reset Overlay to clear the history whenever you switch editors.
Where the overlay draws.
| 3D Viewport | Overlays > Guides |
| Image Editor | Overlays > Guides |
| Node Editor | Overlays |
| Video Sequencer | Overlays |
Every option is in the add-on preferences and the sidebar view panel.
| Setting | Description |
|---|---|
| Align | Left, Center or Right edge of the editor |
| Scale | Sizes the icons, box and margins (1.0–2.0) |
| Opacity | Opacity of the box, icons and text (0.1–1.0) |
| Duration | Seconds an input stays on screen (1–10) |
| History | Number of recent inputs kept in the stack (1–10) |
| Operator Names | Show the executed operator after the input, e.g. "X Delete" |
| Reset Overlay | Clear the overlay when the active editor changes |
| Shortcut | Keyboard shortcut to toggle the overlay (empty for none) |
| Use Theme Colors | Fill boxes from the theme's Tool widget colors |
| Inner | Older box fill when theme colors are off |
| Selected | Newest box fill when theme colors are off |
| Text | Icon and keycap text tint when theme colors are off |