New and quick question: Are there province or even holding modifiers, and where can they be found in the files?
Oh, and a second question: I cannot find a list of all possible event effects / triggers / modifiers ... used to have one for "CK 1", so I look out for something like that in part 2.
1 holding province and character modifiers are all in common/event_modifiers (but are not differentiated from each other)
2 the wiki pages on conditions scopes and commands is the closest you'll have to that (those are pretty encompasing, to be fair).