As far as I can tell, the toolbar button for 'Move to Side' should be called 'Move From Side'. And in the dialog that appears for this, the Action text at the bottom should explicitly spell out the action that is to be performed, e.g. "Move selected files and folders from the left to the right', rather than the vague and ambiguous text that it currently has.
Same for 'Copy to Side'.
Same for 'Copy to Side'.
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