Ok,
if things are already coded, then yes, may be it's more simple
to just go on.
Well, for copying and moving files, I see some steps :
1) selecting files you want to deal with
2) indicating what do you want to do with them (so
copying or moving)
3) where to copy or move file(s)
For the first step, if files are always in the same directory
a "select" statement, with multiple select enabled, should
do the trick.
For the second step, well, may be a simple radio box
(mutualy exclusive) between the two possible operations.
And the for the last step, you need a way of
indicating a destination directory. Somekind of tree
(of directories) may be ? It's a bit complicated, but
very user-friendly (with the help of some javascript);
Or, more simply, a list of hyper-links so the user can navigate
in the tree until he had found his final directory.
And then a big, massive, button "Go" 😃 to validate the
whole action.
Hervé.