When adding to address book at the bottom there are entries for user1-4. What are these entries for? Sorry for the noob ?'s

Wirelessly posted (8700g: BlackBerry8700/4.1.0 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/100)

For whatever you want to put in them, or whatever doesn't fit elsewhere: an additional phone #, birthdate, etc.

don't i feel like a dumbass. i guess i was looking too much into it. thanks!