sorry for the confusion, this option was available in an older version. With the new interface and mouse support the resolution can only be changed by MPG knob or by clicking the resolution buttons on the screen.
We are also working on updating our documentation as per the new interface to avoid confusion like this.
While you are in the process of updating documentation... I was looking into using one of the output to drive a SSR that will start/stop the vacuum from my router when I run a job with a bypass switch to turn the vacuum on manually.
I found the info on TTL output that needs an amplifier and on using Relay driver output. My SSR doesn't state how much current it draws on the control circuit but is it generally safe to use one of these outputs or should i got with the TTL+amplifier to control the SSR. It would be nice to include some wiring examples for other stuff like flood coolant pump, dust boot servos and other accessories.