When a vassal dies, does their same contract get passed to their heir?
If the person dying is a higher tier than the heir then the heir gets the person's dying's contract. If they are the same tier or below then the heir if already landed will keep their current contract.
What does coinage rights do? Also, in one of the preview videos of the game we could see something called fortification rights that you could also grant to your vassals. Is that still a thing? How does it work?
Coinage rights give the vassal 0.3 monthly development growth in their capital county and costs the liege 0.02 in development growth.
Fortification rights is still in, the character I was playing just did not have that innovation unlocked in their culture. If they do then it appears and can give the vassal cheaper castle holding and build costs and a fort level whilst making the liege pay more for their castle build costs.
How does the Council Right work? The vassal is automatically added to council in Advisor role? Or just that when a vassal asks for a position on the council, refusing would incur tyranny/bad rep?
They get free use of the demand council position interaction which the liege cannot refuse. Allowing them to pick a council position and get it. Hooks can also be used for that interaction if you do not have the council rights.
Of course this means the council rights position is limited to only as many council positions you have that your vassals can occupy.
Looks very nice, and definitely a huge improvement. I have a few questions, though:
1) Will we be able to negotiate with a group of vassals at once, or copy-paste contracts? For example, it might be interesting for a King of England and Scotland to have a different set of obligations for his English and Scottish vassals, but it would be quite a hassle to have to change half a dozen contracts in the same fashion if, say, one wants their English vassals to provide more taxes and less levies.
2) When taking over a vassal from someone else, or vassalizing an independent ruler, what will the contract be set to? Will we immediately start negotiating?
3) When granting an unlanded courtier a title, will we be able to freely set the contract? I mean, i they don't like it, sure, we can find someone else...
1. Currently they are handled individually, which to a degree self mitigates it by virtue of encouraging you to make dukes to control the counts and kings to manage the dukes etc. But it is something we are keeping in mind for the future to see if the management of them becomes to annoying and how we can ease that. I would argue that if we need a copy and paste button then the system has become too micro and that is in itself another issue.
2. I answer this at the top of this post but its basically you keep yours unless you had none of the person you are inheriting from is better. If you are a brand new vassal then its default tax and levies and no fine print options.
3. It will be the default as above.
How does it look on the other side when the liege (or vassal) presses the magic button?
For example, let's say my liege tries to implement Forced Partition for me. Do I get Partition the instant he presses the magic button (meaning I need to change the contract to exclude that clause and then need to change my succession law to escape it) or can I instantly tell the tyrant (or "tyrant", as the case might be if he offered something "fair") where he can put his contract and rise up in rebellion to keep my old contract (or perhaps even to get a better one) and (assuming I prevail) skip the whole Partition thing?
You will be informed of the change to your contract and deal with it

The AI won't do too many changes at once though and of course if you really dislike it you can rebel to be free of it all.