Total Commander

There could be an option to user-defined prefix and suffix in suffix of autorenamed files. Number would be always there to avoid duplicites, but before and after number there could be user-defined strings.
Some examples (file.txt is copied with autorename overwrite option):
Example1
preferences in tc options (user can edit):
prefix: "("
sufix: ")"
how it works:
result after autorename copied: "file(2).txt"

Example2
preferences in tc options (user can edit):
prefix: " ("
sufix: ")"
how it works:
result after autorename copied: "file (2).txt"

Example2
preferences in tc options (user can edit):
prefix: " copy"
sufix: ""
how it works:
result after autorename copied: "file copy2.txt"

Since ver. 9.20 there is workaround: wincmd.ini [Configuration] AutoRenameMode=3: Determines how files are auto-renamed when copying or in multi-rename tool. Sum of: 1: append number (x) separated by space, 2: start number at (2), not (1). It is sufficient for me. Thanks to author.