thats what the forum is all about, answering questions.. the hard part is doing it in a way that a new beekeeper can understand, thankfully our moderators and Admins are pretty good at doing that.
This is one of my own home made wedge top bars... break off the piece that is barely attached, lay the wax in place, bottom in the groove, top against the side that was NOT removed.. place broken out "wedge" against wax, and nail in place..
I know you figured it out already, just wanted to make it as clear as possible for anyone else reading!!
keep asking questions!!! Having hundreds of combined years of experience at your fingertips empowers you!!!