If this has not been requested or already available, this is an additional feature for FvwmPager.
How to handle a cluttered desk when small windows are under the larger one? SloppyFocus and FvwmAuto Raise mouse doesn’t have a click focus. This is solved with an overview of all windows on the page. Gnome Overview and Xfdashboard does it well at the cost of memory usage.
FvwmPager can do the same if the pager page layout of the windows is changed. Windows are in separate rows instead of stacked.
Can this feature be added…
Here is a screenshot of a real-time clutter desk when working with images of Gimp, Dolphin to grab and load into OpenShot. And the illustrated new feature for FvwmPager.