Hard to say. For now it's a Material editor, not Maps editor.
Bitmaps are important part of materials so I implemented their properties, but implementaion of all properties of all maps needs new complicated UI.
Why do you need that? For some batch procedures I write couple of strings, do the job and even don't save them. If you'll describe your task maybe I can write some code.
Or you can use Soulburn Scripts and choose Parameters Manager.
Then:
- Select objects with normalmaps
- Go to Params manager. Select "Maps in sel objects", then click "Refresh" if no Maps were found.
- Choose parameters and set them.
It's a bit buggy but universal.