FvwmPager is used to show the layout of your Virtual Desktop. It will show all the Pages and Desktops you have set up, and the windows opened in each.

As with the FvwmTaskBar, the first thing to do is set up the Styles and Colorsets you want to use for your pager. I am just gonna use the same colorset as was used for the TaskBar.

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# FvwmPager
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Style "FvwmPager" NoTitle, !Handles, !Borders, Sticky, WindowListSkip, \
  CirculateSkip, StaysOnBottom, FixedPosition, FixedSize, !Iconifiable

DestroyModuleConfig FvwmPager: *
*FvwmPager: Geometry 150x150-0+0
*FvwmPager: Colorset * 9
*FvwmPager: HilightColorset * 10
*FvwmPager: BalloonColorset * 9
*FvwmPager: WindowColorsets 9 10
*FvwmPager: Font "xft:Sans:Bold:pixelsize=12:minspace=True:antialias=True"
*FvwmPager: Balloons All
*FvwmPager: BalloonFont "xft:Sans:Bold:pixelsize=12:minspace=True:antialias=True"
*FvwmPager: BallonYOffset +2
*FvwmPager: Window3dBorders
*FvwmPager: MiniIcons
*FvwmPager: UseSkipList
*FvwmPager: Rows 3

Refer to the man page for full explanation of all the options available. To launch the FvwmPager, you run it as 'Module FvwmPager [start desk] [finish desk]'. In the StartFunction I have this one set up to show all three desktops on one pager so I run it as 'Module FvwmPager 0 2'. If no options are sent, FvwmPager will only show the current Desktop.