Pop’s Skoolie

I have removed the interior metal from my 2002 International Blue Bird 3800 6-window 24’ long bus called BettyJane. I’m removing the wiring that I do not plan to use or was snipped by the BOE. My question concerns the EE windows in BettyJane. I want to remove them and am not sure how to do it? There is a piece of metal remaining on the underside from the wall that needs to be removed. How do they pop out from the frame. I believe I have all the screws removed. Here’s a pic. I would appreciate your suggestions & expertise. Pop

I don’t know how to add a pic to my text either!