i would like to know how to add parts to this

Gibson Les Paul Traditional
Carvin V3 and Marhall 1960A cab
2 B.C. Rich Ironbird Pro
Schecter Hellraiser 6
Boss ML-2

Click your username,

"My Profile" >> "Edit Profile" >> then the "About me & Interests" tab.

If you have trouble finding these, just ctrl-f them.
Up in the top right hand corner, click my profile, then on the left it says user menu, on that click edit profile. And then on the box it brings up on the top there are tabs, and click "about me & interests.

Edit: Nevermind.