ToME: the Tales of Maj'Eyal

I am currently play as a archer using keyboard.And it hurt my little finger every time i have to press Enter to confirm my action,like shooting or talent.
Can anyone give me some help here?I would like to bind the Space as Confirm.

Well,after some times of research i find out the Confirm Action key .So this question is no more.
But i do have another question.Does buff of my summoner will transfer to my summons,like Wrath of Eternal?If it does,it is before i summon my pet or anytime?