The tag pane could be made functional.
That means offering the possibility to perform operations.
All operations would be batch operations, modifying all instances of a tag, in all files.
Example operations:
- Create New (Empty) Tag
-
Rename Tag (would rename all instances of the tag)
-
Delete Tag (would delete all instances of the tag)
- Create Hierarchical Relationship
This would allow the possibility to easily create temporary tags.