well, after pfaut's new gun from lightray i decided to give a shot at modeling even if it does give me headaches

i followed GS's tut which i'm still looking through but i got stuck on step 3 (i think) where it says "Convert all your meshes to a skin to do this select a mesh and go to edit, scroll down to you see convert to skin
Push it. Do this to all the meshes" <what the hell is a mesh lol. i selected something...buuuut....then when i went to edit i didn't see anything about converting it to a skin which tells me i obviously didn't select a mesh. can someone help me out?