Keyboard shortcuts

These work in the editor on Android with a keyboard, and on the desktop app. On a desktop, use Ctrl; elsewhere use Cmd.

ShortcutWhat it does
Ctrl + ZUndo
Ctrl + Shift + Z or Ctrl + YRedo
Ctrl + SSave
Ctrl + Shift + FFit the map to the view
Ctrl + 0Reset the zoom
Ctrl + =Zoom in
Ctrl + -Zoom out
Ctrl + ESwitch between map and paint mode
Ctrl + MSwitch between the Layout and Canvas mappers

While you are typing inside a text field, that field keeps its own Ctrl + Z for undoing what you typed.