You can highlight the 20 files and right-click > Edit.
I guess I didn't explain myself very clearly.
I'm aware that multiple files can be edited with the tag editor. What I'm requesting is the ability to tag inline for multiple files the same way as you can for single files.
For example, 20 files have all different variants for Album (slumdog millionaire, slUmdogMillionaire, SLUMDOG MILIONARE, etc), and I want to quickly change all of them to "Slumdog Millionaire". If I could edit them inline, I just highlight all the files, press F2 on album, and enter it right there. BAM. done.
Instead, right now I have to right-click, go to edit, check the album tag, enter it in, click save. It's tedious. I'm asking if this process could be streamlined.
Thanks for your consideration!