Yeah - it does help at times. But even better approach is to try creating HUGE groups to clear up large parts of level. Check out tips&tricks link in the game - it has video walkthrough of some levels, you'll see what I mean. Thanks for playing my game! :)
 "Paintball Racers"){kind=icon}
 "Parallel levels"){kind=icon}
 "DuckLife"){kind=icon}
 "New Star Soccer"){kind=icon}
 "Gravity Duck"){kind=icon}
 "Cat Mario Demo"){kind=icon}
 "Ninja Bear"){kind=icon}
 "first game test"){kind=icon}
 "Building Bloxx"){kind=icon}
 "Saving the Company"){kind=icon}
 "Gluey 2"){kind=icon}
Yeah - it does help at times. But even better approach is to try creating HUGE groups to clear up large parts of level. Check out tips&tricks link in the game - it has video walkthrough of some levels, you'll see what I mean. Thanks for playing my game! :)