Verticals on Arca Swiss 8x10 F line back

[Peter Shier]

Just bought a beautiful used Arca Swiss 8x10 F line. I have what is probably a F AQ as this is my first venture into 8x10. How do you reverse the back to do a ve rtical? There is no lip on the top when the back is reversed so it doesn't snap into the holding clip on the format frame like on the 4x5.

Thanks, Peter Shier

[Peter Shier]

OK I feel pretty stupid-. I was trying to put in the back upside down. Thanks anyway.

Peter