Hello all. I am using a 5D3 as a video input to a streaming switching system over the HDMI port. I didn't plan to record to the CF or SD card. Is there a way to keep Livevew from shutting off after a minute or so without recording video? Feel like I must be missing something simple but maybe this can't be done. Many thanks in advance.

Oh boy . . . Auto Power Off - DISABLE. Big dunce cap for me. Sorry about that.

even turn off auto power off, 5D3 will still have a chance it shut itself off