Everything is spelled correctly as far as I can tell.
They are composite columns using code like this:
Code:
program:
list_union(
list_intersection(field('tags'), 'values listed, ','),
list_intersection(field('#shelf'), 'values listed', ','),
',')
It deletes Short, delete but not custom columns. I guess because they are custom. All values are with first letter uppercase, others lowercase.
Maybe I could just paste all these values from these into python code like 'short, delete' are? The ones I want to remove.
What function I would use in python to write the values I want to keep, not add. Like extract only those values? I'll try to write it myself using your example. I just need a function so I could use it for genre, character,mode columns. It would be more efficient as far as I understand.