at the end of the day he came to a sticky end
...and so back to crusties. I take your point.
Be nice if:
one could expand the window horizontally. Believe it or not some file names here are longer than will fit without scrolling.
highlighting on selected files could be adjusted on the fly, to match the value in the trim left/right spinners.
there were a 'trim between'.
one could select/copy directly from file names to paste into the 'custom replace' box.
there were an undo.
the tax man knocked on my door tomorrow to hand me a full, cash refund