Reference > Keyboard shortcuts >
Subdivision levels and symmetry

Action | Windows and Linux | Mac OS X | Results
--- | --- | --- | ---
Add Subdivision Level | Shift + D | Shift + D | Subdivides the active model.
Step Level Up | Page Up | Page Up | Displays the next (higher) subdivision level on the active model.
Step Level Down | Page Down | Page Down | Displays the next (lower) subdivision level on the active model.
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.