What did you define for the currently empty fields No Disque and No Pistes?
(The data is already available in the field TRACK and DISCNUMBER - not all file formats split it in TRACK and TOTALTRACKS and DISCNUMBER and TOTALDISCS - this would be something typical for a certain file- and tag format)
Yes variables are already defined, I just want to know how I can trigger a batch splitting action to spread track and totaltacks tagged in track and discnumber and totaldiscs tagged in discnumber
01/01 have to become A:01 B:01 for both use cases
If I understand it depends on tag format of files ?
Exactly. Some file formats always split it, some never. And the tag panel only shows the whole contents of a field but does not allow any scripting functions (like the columns do). So you have to live with it the way it shows now.