Does anybody know how to copy information from one category (e.g., WORK) to another (e.g., MOVEMENTNAME or GROUPING) more quickly (context down below)? Doing it manually is going to take an eternity, so any help would be greatly appreciated.
See the FAQs:
It's also in First Steps → Copying one Field to another Field using Convert → Tag - Tag.
It probably has to be the other way round:
To copy WORK to CONTENTGROUP
Convert>Tag-Tag for field CONTENTGROUP
Format string: %work%
I am not sure what your intentions are with $meta_sep()
Yes, it's the other way round: you first select the target field and reference the source field(s) in the format string.
I've updated the example in the documentation to make this a little clearer.

