You can use the following keyboard shortcuts for working with Optical tools in MotionBuilder.
| Action | Keyboard Shortcut |
|---|---|
| Navigate marker list (Label pane) | Up/Down arrow keys |
| Navigate marker list within same Rigid body (Label pane) | Shift-Up/Down arrow keys |
| Go to previous/next segment or gap | Shift-Left/Right arrow keys |
| Frame all segments | A |
| Move start/end of current segment | M-drag segment edge |
| Move Timeline indicator | T-click or Ctrl-Shift-click |
| Insert a gap key (in gap only) | K |