Wanted: Field Caps/lowercase conversion

I think MP3TAG is great!!
But I do miss one thing.

Not every file has the same capitalization in the tags and/or filenames.
I want a function in this program which converts all Uppercase, or all lowercase to in-between. (Don't know the correct naming for this, but I mean every word beginning with a capital).

For Example
MICHAEL JACKSON - THIS IS IT.mp3
Tags
Artist: MICHAEL JACKSON
Title: THIS IS IT

Conversion (by tag)
Artist: Michael Jackson
Title: This Is It
Then renaming by Tags:
Michael Jackson - This Is It.mp3

Or example:
strange singer - 12sing now.mp3

Conversion (by filename)
Strange Singer - 12Sing Now.mp3

Read The Fine Manual about built in functions ...
https://docs.mp3tag.de/scripting
... specifically look at $caps(), $caps2(), $caps3() what they can do for you.

DD.20100224.2112.CET

Yes, Eichenwurm, you have read the request better than me.

PSV_Supporter should use the action "Case conversion" set to "Mixed Case".

DD.20100224.2129.CET

Okay, will look at that. I think $caps() does what I want.

But it can only be used when conversing from Tag to File, or File to Tag, or can I use it in the fields to the left?