A different route to the same layout
You can still arrange windows the way you always have. Window snapping is another route for the times you are typing and do not want to reach for the mouse.
The launcher is a single field you already use for apps, math and emoji. Window layouts live in the same field, so the move starts where your hands already are.
Snap a window in four steps
Bring the window to the front
Window snapping works on the window you are currently using, so click or switch to the window you want to place first.
Open Supermac
Press your Supermac shortcut. If you have not changed it, use the shortcut you set when you installed the app.
Type the layout
Type the arrangement you want, for example left half, right third or top corner. The matching layouts appear in the launcher.
Pick the window to place
Choose the layout, then choose the window. Supermac moves it into place.
Layouts worth learning
- Halves for two apps side by side: an editor and a browser, or a call and your notes.
- Thirds for three-way comparisons, such as a reference, a draft and a chat.
- Corners for a small reference window that should stay out of the way.
The launcher shows the layouts it can apply. Type the one you want instead of cycling through them.
Grant Accessibility once
Moving another app's window needs accessibility access. macOS asks for it the first time you snap a window; click Allow. After that, snapping works without another prompt.
You can review or change the permission later in System Settings → Privacy & Security → Accessibility. If snapping stops working after an update, the troubleshooting doc walks through the same setting.
Make it part of the day
Use snapping when you set up a task, not only when a window is already in the wrong place: open the editor, snap it left, open the browser, snap it right, then start working.
The same launcher handles the app launch and the layout, so a two-window setup takes one field instead of a Dock trip and a drag.