Hi,

I have to hit the "Use" button and then "Spacebar" to loot everything from a box or a corpse. Is it possible to change this into something like "Autoloot" (Just passing by the Box/Corpse/Plant to loot) or only hitting the "Use" button once ?

Well I dont know... but... if you loot any chest as another character, it will be empty when you come across it as Geralt.

No there isn't. To be honest there shouldn't be since looting some items is actually stealing and forces you into a fight with the guards.

Uh, nice, didn´t think about this. But is there a way to change the "Spacebar"?

I haven't found a way to change the key mappings as of yet.

Hmm, crap. To change this button is my wish for the next patch..

You could make a script for autohotkey (http://www.autohotkey.com/) and have it running in the background. Ex. when you hit the E key it auto hits space right after. Something like this:

e::
Send {e}
Sleep, 500
Send {space}
Return

What that does is when you press the "e" key it sends a command telling it pressed "e" and then ½ a sec later it presses the space key.