Ctrl-Tab could show a small dialog (like super-T does) showing the last edited files if the ctrl key is not released.
So we could use up and down to select any file (or do a fuzzy search).
The first in the list would of course be the last edited file and on release, this file would be selected. (a little bit like cmd-tab on macosx or alt tab on windows).
So usage would be the same as today if keys are released (but a little bit different if ctrl is not released)...
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