CTPCI Switching

[foft]

I'm fitting my Falcon in a rack mount case again, rather than sitting bare motherboard on a table!

I'd like to add a switch to turn the CTPCI on/off. I think one simple way would just be to cut 5V and 3.3v to the cards. Is there a better existing way? I guess I could make a version of the JED with a switch on one of the spare IO pins just feels like something may already exist.