Custom Name with variables

[Menelmacar]

Hi, I don't know if this is already possible or not, at least I don't know the syntax if yes.

Is it possible to use a custom name like {original_file_name}-## (adding a number) or something like that,
Or does the setting custom name mean, it is exactly one name, always the same for all files used for ffshare?

If variables in the Name are already supported, a small how to // manual would be great