user menu in midnight commander

[sp113438 <sp113438@telfort.nl>]

Hi,,
I have this problem. I have a command:

find -type f -depth -maxdepth 1 -execdir bash -c ' conv_name=$(printf
%s "$1" | iconv -f utf8 -t latin1 | iconv -f cp1251);  mv -v -- "$1"
"$conv_name" ' -- {} ';'

(it is for the conversion of cyrillic filenames)

and I want to add it in the user menu of midnight commander.
It should apply on all files in the open directory.

Any ideas on how to do this?

I tried to add this to the user menu, it shows up when F2 pressed, but
it does not work, it asks for parameters:

+ ! t t
z       Cyrillic convert
        CMD=%{find -type f -depth -execdir bash -c ' conv_name=$(printf
  %s "$1" | iconv -f utf8 -t latin1 | iconv -f cp1251);  mv -v -- "$1"
  "$conv_name" ' -- {} ';'Enter command} $CMD %t