Bulk tag editing - Adding another for eg. genre to already existing string

[moment]

I know musicbee is not a tag editing program but I was wondering whether there maybe would be an easy way to add such a functionality to a tag editing tool in Musicbee that I can add to already existing tags some another additional info.
It can be easily done by just Regular Expressions I believe and adding a additional field in tag editing window for such purpose.

But even tag editing program lat tagscanner doesn't have this feature, only some workaround which takes some little more time.

[phred]

Take a look at the Additional Tagging and Reporting Tools plugin. I don't know if it can do what you're looking for, but take a look at it as it -might- be able to.

[frankz]

You can, with that plug in, add a new value to the end of an existing tag.  I just added "; Classic Rock" to the Genre tag of my Classic Rock playlist that didn't already have it, for example.