On my set up, I have two reefing lines. One for the forward reef point and one for the aft point. The reef points in between these are tied off individually.
Both the forward and aft reefing lines run from the reef point down through a turning block, then towards the center of the boom to a cleat. I let the sail down to a certain point, then reef the two reef points, tied off the center section, then hoist the sail again.
Hard to put this into words..... Here is the only picture I have. If you look closely, you can see the forward reefing line running down and through that turning block on the boom.