CTRL-Z isn't working

[CTRL_ALT_DEL]

CTRL-C is working.
CTRL-V is working.
CTRL-X is working.
CTRL-Z is NOT working!

The UNDO button is also missing. Very weird!!!

[CTRL_ALT_DEL]

Marek, would you mind explaining your reasoning as to why your paying customers aren't worthy of an UNDO/REDO feature? It would be trivial to add it to FreeCommander, so what logical reason could you possibly have not to add it?

Is this really such an out of the ordinary request considering how practically every other file manager in existence has it?