Please find below a complete list of keyboard shortcuts for AM Composer:
General
Ctrl + S - Save the workflow that is currently open.
Crtl + Z - Undo the previous action.
Ctrl + Y - Redo the previous action.
Workflow execution
Ctrl + R - Runs the workflow that is currently open.
Ctrl + T - Runs the workflow that is currently open for a specific task.
Esc - Stops the workflow that is currently running.
Debugging
F5 - Step by step execution.
F10 - Continue the execution of the workflow.
Selected Activity
Ctrl + C - Copy the selected activity.
Ctrl + V - Paste the selected activity.
Ctrl + Alt + C - Comment out the selected activity.
Ctrl + Alt + U - Uncomment the selected activity.
Ctrl + Alt + V - Open the variable editor for the selected activity.