Tan sez:I want to remove the centre glass pane to modify the panel to either
make it
open-able or install some vent/hatch.

Need to allow breeze into hardtop area especially at anchor.

Tan, you don't give us much to work with.
YOU know what model and year boat you have.
We don't.
Different models and years have different configurations and components
supplied by various vendors.
Try to locate more infomation and then post your question at the Bayliners web
site:
http://baylinerownersclub.org/

Mike
1999 Trophy 2052