You can add a file to more than one target; this is OK.
To remove the current file from a target, type @kbd{C-c . d}
-(@code{ede-remove-file}), or or use the @samp{Remove File} menu item
+(@code{ede-remove-file}), or use the @samp{Remove File} menu item
in the @samp{Target Options} submenu. If the file belongs to multiple
targets, this command prompts for each target it could be removed
from.