One thing that would occasionally frustrate me with Win 8 start menu (the native one, not a start 8 one) was the inability to launch 2 or more instances of an application by clicking the tile. One application that I do this with frequently is Putty. I would always have to explore to the programs executable and launch the second instance.
Well, here is a little registry tweak that will allow multiple instances to be launched (assuming that the application support it).
Go here.. http://teamwindows8.com/2013/04/launch-multiple-instances-of-app-from-start-screen-in-windows-8/
Or simply copy and paste this in to notepad. Save the file as a .reg type and launch it.
Windows Registry Editor Version 5.00