nwn2 multiplayer campaign questions

We are hoping to start a 3 player game of nwn2 and continue into MotB.

Just a few questions:

Diplomacy/Intimidate/Bluff... will these always use the stats of the "lead"
character? in single player, no matter which character starts the
conversation, the lead character has to conduct the conversation. Is this
the same in multiplayer? I noticed (at least in MotB) that for example Okku
would sometimes step up if I failed an intimidate check (because his
intimidate is higher). Is this what happens in multiplayer too?

When calculating Appraise checks, is this always taken from the lead
character.. or does it just depend on who speaks to the shopkeeper first?

Can the party split up? eg could one character be in the shaman's lodge and
another in the veil theatre? (seem to remember you could do this kind of
thing in BG2)

Is it possible to turn the "auto-ressurection" thing off in multiplayer?

How do NPC henchmen work in multiplayer? Can anyone control any of them, or
is it just the lead character, or do you divide control amongst specific
NPCs, ie PC1 controls Kelgar, PC2 controls Neeshka etc..

How about influence with NPCs? is this always taken from the conversation
choices of the lead character, as in Single Player?

Thanks in advance