Launch apps with the spacebar in Quicksilver possible?

[ying yang]

Is it possible to reconfigure QS from Return launching apps to the Spacebar? I've gotten used to Spotlight and the Retunr key on my MBP is uncomfortably slim for this much use, especially compared to the spacebar.

 

[dolphin842]

Another method of launching apps is to hold down the last letter you type in to identify the app. For example, if you get to Safari by typing "Sa" you'll want to hold down the "a" for a second. I'm not sure it's possible to switch the default launcher for Return to Space, however.