This should have been at release, linked civil skills for example barter should effect all party members it's so annoying to replace all items to one char for just selling it's a oversight from the Devs.
Besides the multiplayer, I actually like how the individual civil skills give each character more individuality. For example knowing that your rogue has high thief so he's the one who needs to pickpocket and open chests is pretty cool. As for bartering, I like that you need to select your bartering character to get the discount, it would be nice however if you could switch between characters within the trade menu while selecting items to sell. So then you could select everything you wanna sell, and then you'd just have to remember to select your bartering character to close the deal.
I like how they made loremaster share though.
