Visible windows with titles starting with "home" or / will get an Escape key.
( Note: Also minimized windows can carry a selection )
That is somewhat of an overkill - because on receiving data - the script COULD deduct the parent-path to the directory in which the selections occurred.
However - ROX craves user-action to free selections -
and with a hectic selection activity on several windows - there may be
1) stale,dimmed selections
2) the actual last selection -which is in the clipboard
Dead selections are a nuisance,when forgotten - and f.x. a right-click in a filer-window with dead-selections might give rise to a WTF-moment.
So for now:
Sending out a spree of Escapes makes for a saner world.
The extra coding needed for a dedicated solution does not really seem worth it.
But still - xdotool has to be around - so another -,"in residence" - way would be preferable.