One of QuickSilver most productive features : The Comma Trick. According to the name, this trick has something to do with comma.

How to use comma trick?

1. Invoke your QuickSilver (Spc)
2. Search for application you want to open, let's say you want to open Photoshop.
3. No, don't hit . Instead, press the , . You will see something like this
   

   

4. After that, search for another application you want to open and do the same thing. You can do that again and again.
   

   

5. If you've done, you can hit . And all of them will perform the action you give them (for this case, Open Applications).
6. If you want to remove your last queue applications from your Comma Lists, just use ⌫ and the last will be removed from list.

What is the purpose of using comma trick?

1. Saving Time with Step by Step Tutorials
2. Extremely Quick with Video Demonstration
3. Faster Printing
4. Opening Multiple Urls