You can use the following keyboard shortcuts for performing general actions in MotionBuilder.
| Action | Keyboard Shortcut | 
|---|---|
| Undo last action | Ctrl-Z | 
| Redo last action | Ctrl-Y | 
| Cut | Ctrl-X | 
| Copy | Ctrl-C | 
| Paste | Ctrl-V | 
| Paste Special | Ctrl-B | 
| Delete selection | Delete | 
| Global accept | Enter | 
| Global cancel | Escape | 
| Save scene | Ctrl-S | 
| Pan window | I-click-drag | 
| Zoom in/out | P | 
| Zoom rectangular | Middle-click | 
| Select a range of assets in the Navigator | Shift-click | 
| Position Time cursor | Ctrl-Shift-click | 
| Drag and drop asset | Alt-drag | 
| Open scene | Ctrl-O |