Configuration list for tag > filename feature

I use the tag to filename feature very often. It remembers a lot of my previously used format string combinations. Where are they all saved? I want to reduce the long list to a handful of entries. It's always a long search to find the most wanted.

If you have a set frequently used format strings for the filename, it may be useful to create an action of the type "Format value" for _FILENAME. The syntax is the same as for the convert function.
You then don't need the list of the convert function any more.

Thanks. Thats a possible solition as well.