Is it possible to mod the system of message settings / message rules in a way that certain messages are displayed concerning everyone ("all vassals", "all rulers"), whereas other messages are only displayed concerning certain people ("direct vassals", "no rulers")? Within the game I think there is no way to customize the whole matrix of choices (what message should be displayed concering which people?). You can only customize what message generally should be displayed and concerning whom ALL those messages should be displayed.
Is it possible to mod the "warnings" (the bubbles at the top telling you e.g. about an unmarried heir)?
Is it possible to mod the "warnings" (the bubbles at the top telling you e.g. about an unmarried heir)?