I have: 2020 Transit LWB (148") HR. I'd like to install bunk windows. I'd like them to go towards the rear. Talking to a body shop they said I shouldn't cut the support pillar (red arrow in pic). I've seen others cutting this though. My question: is it ok to cut this, and how do you know? Is there something in the BEMM document that addresses this, and if so, where? I didn't see anything that mentioned this. Thanks in advance.