Xp its not whared, this mod only level up you together, if one levels up, everyone levels up

i noticed with friends that mostly xp from fights are shared, but not from some quests. Example: when you have a certain jar and you give it back or destroy it, me and my friend, in a party both got the +4300 xp but not my other two friends in a different party. what is the cause of this?

any time

does this need to be added before starting the campaign or can it be added during a campaign?

if you mean on the start(the ship) of the start, yes. if its past that, nope.

is it normal that i don't see any xp gain?

This mod is only for leveling up together, propose it on my other mod better scaling character

hey can you please add a summon dragonling and summon poison slug skill-books? i really want to use those skills but i often can't as i don't like using the Red Prince or consumables