Once you open the Key Commands window, you can browse or search for key commands.
You can also switch between key command sets, or import and export them. This is useful if you need to work temporarily on another user’s Logic Pro system, because you can use your personal key commands without altering the settings of the other system.
In Logic Pro, do one of the following:
Click the disclosure arrow beside a key command group to show its contents.
Click the Action pop-up menu 
in the top left of the Key Commands window, then choose Expand All to show the contents of all key command groups.
When you expand key command groups, your key command selection may no longer be visible. You can quickly return to the selected key command by choosing Options > Scroll to Selection.
Click one of the filter buttons to restrict the list of key commands to the following:
All: Show all key commands.
Used: Show only assigned key commands.
Key: Show only key commands assigned to the keyboard.
Touch Bar: Show only key commands assigned to the Touch Bar.
Unused: Show only unassigned key commands.
Customized: Show only user-customized key commands.
Multi-Used: Show only key commands used in multiple windows.
Conflicts: Show only key commands that conflict with other key commands.
Pressed: When the Pressed button is engaged, pressing a key combination on the keyboard shows all key commands that use the pressed key.
In Logic Pro, enter a search term in the search field.
You can click the small “x” at the right side of the search field to clear the search term. Click the magnifying glass icon at the left side of the search field to choose a search term from the pop-up menu.
In Logic Pro, do one of the following:
Choose Logic Pro > Key Commands > Presets.
Click the Action pop-up menu in the top left of the Key Commands window, then choose Presets.
The default key command sets, along with key command sets saved in the ~/Library/Application Support/Logic/Key Commands folder, are displayed, allowing you to quickly switch between key command sets.
In Logic Pro, click the Action pop-up menu in the top left of the Key Commands window, then choose Import Key Commands.
You can import key command sets from any folder location using the dialog that appears.
In Logic Pro, click the Action pop-up menu in the top left of the Key Commands window, then choose Save.
In Logic Pro, click the Action pop-up menu in the top left of the Key Commands window, then choose Save As.
You can save the current key command assignments to any location using the dialog that appears. The default location is ~/Music/Audio Music Apps/Key Commands.