I'm using amarok 1.4 as music player in a bar. No when my colleagues search for a song they tend to automaticly press enter afterwards which then cues all the results to the playlist. Is there a way to disable this function?

This really bothered me as well.  There is no method for disabling this, I ended up commenting it out in the source and building it myself.

I can show you where this is located if your interested. 

Yes, please tell me, I'm very much interested.