FVWM: bookmark/unbookmark multiple windows

To select a window for moving there is afaik two methods.
Either you make the window sticky, and then unstick it - or you
bookmark the window.

I would like to do this :
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1), Select a windoiw
2), Add the window to a list, lets call it LIST_OF_BOOKMARKED_WINMDOWS
3), Add a new window to the list.
4), Search the list for select window - if window is found then do
something with the windows.
5), remoive the window from the list.
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Further goal . - Ideally I would like to have multiple lists and
swithch between them
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Any ideas.?
/Peter Holm