APM icon
To run the automated page make-up with one click, click the related icon in the main toolbar (marked in red on the following screenshot).
When you click the icon, the APM runs with the current preferences.
APM shortcuts
Since build 2.5.138, there are the following useful shortcuts, related to APM:
Open the parent library object from selected frame SHIFT+CTRL+LEFT DOUBLECLICK
Open the Extra Parameters dialog box from sel frame SHIFT+ALT+LEFT DOUBLECLICK
Open the Content Position dialog box from sel frame CTRL+ALT+LEFT DOUBLECLICK