Program alarm actions can be edited in the "Main" screen by clicking the "Edit alarm actions" button in the Edit alarm window.
Select a program action in the list or choose "Edit action" from the right click menu. Once the action is selected, the action details are shown in the bottom section of the window where the details can be edited. Click the "Clone action" button to clone the action. By clicking "Add to library" the program action is added to the action library.