Customizing Table of content header

Hello,
I just found your plugin and it is really nice.
I would like to ask you if it’s possible to add a way to customize also the “Table of contents” for each post/page (maybe using the currently available form for renaming the headers?)

That would be definitely useful to me.

I may also translate the plugin in Italian language as a way to say thank you.

Thank you very much
best regards