If you have multiple Sketch plugins, the default shortcuts for those plugins may conflict. If you want to change the default shortcut for Craft tools like Design System Manager (DSM) or Craft Sync, you can do so through your Mac's System Preferences.
To set a custom keyboard shortcut:
On your Mac, navigate to System Preferences > Keyboard.
Click the Shortcuts tab.
Click the + button and, from the Applications dropdown, choose Sketch.
In the Menu Title field, enter the name of the menu command you want to add.