How to switch to Roaming on WM5 rom?
 

I tried a few of the WM5 rom and I don't see the option of switching the phone to roaming. I kind of need this because for some weird reason, there is limited or no service in my room. The call constantly drop if I left it as Sprint.

By the way, is there a utility or a script where I can toggle home and roaming with a push of a button?