feature request - track # formatting

In a related but opposite request...

I tag my files as "tracknumberwithleadingzero"/"totalnumberoftracks".
Like this:
05/25

Is there already a tag to use like %totaltracks% that I could use to autonumber the tracks? If not, could you add this format to the AutoNumber tool?

Related post

Thanks in advance and thanks for the best tagger in the world.