Reference > Keyboard shortcuts >
Subdivision levels and symmetry

To: | Keyboard Shortcut: (Windows) | Keyboard Shortcut: (Mac OS X) | Action/Results:
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Add Subdivision Level | Shift + D | Shift + D | Subdivides the currently active model. An active model is the model under the cursor when the hotkey is pressed.
Step Level Up | Page Up | Page Up | Displays the next densest (higher) subdivision level on the active model. An active mesh is the mesh under the cursor when the hotkey is pressed.
Step Level Down | Page Down | Page Down | Displays the next coarsest (lower) subdivision level on the active model. An active mesh is the mesh under the cursor when the hotkey is pressed.
Delete Highest Subdivision Level | Shift + Backspace | Shift + Backspace | Deletes the highest subdivision level on the active model. An active model is the model under the cursor when the hotkey is pressed.
Set Topological Axis | Ctrl + V | Command + V | Sets the topological axis for symmetry and layer operations. Two adjacent faces of a model's topological center line must be selected when the hotkey is pressed.