Any way to change XP reward distribution?

Hi, is there any way to change the amount of xp charname takes out of all kills and quests. I guess "Quest experience points" would be excluded.

So, say I finish a quest or kill a monster and the party of 5 is given 700xp. Usually it is split evenly and everyone would get 140xp, charname and each of the NPCs. Can I change the distribution so charname gets 300xp and each of the NPCs gets 100xp? Or alternatively, just increase the amount charname takes - so out of 700xp the NPCs would get 140xp each, but charname would get 420xp (three times the amount allocated to it) even though the sum exceeds the 700?

I know I could do that manually through the console by adding xp to charname but I'm looking for something that would do it automatically. I'd like to have a go with FMT charname that wouldn't fall far behind the rest of the party in ToB.