Move Window to Left Half
Arrange the focused window
When: Press Option + Left Arrow. Do: Set Window Layout for the focused window using the left-half preset. There is no If Condition.
Configure and try it
- Import the Rule and review its Option + Left Arrow shortcut. Choose an unused combination if it conflicts with another app.
- Grant Accessibility access to Rulr and enable the Rule.
- Focus a window in another app, then press the shortcut. The window moves and resizes to the left half of its current screen’s visible area.
- To use a different arrangement, choose another preset in Set Window Layout.
Requirements and limits
This Rule requires a Rulr version with Set Window Layout and Accessibility access. The target app must expose a window that can be moved and resized. Some windows may not support the requested dimensions, and full-screen windows are not supported.
The Rule snaps the focused window to the left half when the shortcut is pressed. It does not continuously arrange other windows, provide drag-to-snap controls, or restore a saved workspace. For a comparison of these approaches, see the Mac window manager guide.