And can that be done seperately from setting a max army levies to be drawn by liege?
I figured as much.
I was hoping to be able to make it so that a leader who owns a ship-producing barony would be the only one who could really call up his own ships, while his liege would only be able to call up a few of the ships.
Example: Count of Sardinia has buildings to produce 10 ships. That allows him to transport his troops off of Sardinia. However, if he is a vassal of the HRE, I don't want the HRE pulling naval levies from him, which lowers his own naval levies (and thus can't transport his own troops) and gives naval levies I don't want to the HRE.
This would be very helpful for a specific mod I'm working on that in part involved drastically reduced navies to make them more significant, but it looks like that won't work.
There's no way to do this that I know of. Fun fact: If you are playing as France in the pre-Hastings start, you can easily keep Normandy by raising all of William's ships so he can't get to England.
That sounds like something that should be patched imo >_>