Reference > Keyboard shortcuts >
Edit menu

To: | Keyboard Shortcut: (Windows) | Keyboard Shortcut: (Mac OS X) | Action/Results:
--- | --- | --- | ---
Undo | Ctrl + Z | Command + Z | Edit > Undo
Redo | Shift + Z | Shift + Z | Edit > Redo
Delete | Delete | Delete | Operates on active models. An active model is the model under the cursor when the hotkey is pressed.
Lock Mesh | Shift + F | Shift + F | Operates on active meshes. An active mesh is the mesh under the cursor when the hotkey is pressed.
Unlock Mesh | Ctrl + Shift + F | Ctrl + Shift + F | Unlocks all locked models.
Freeze Selected | Shift + M | Shift + M | Freezes the vertices on all selected models.
Invert Freeze | Shift + I | Shift + I | Freezes any vertices not frozen and unfreezes all frozen vertices.
Unfreeze All | Shift + U | Shift + U | Unfreezes all frozen vertices