Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
V
I didn't get anywhere setting GPIO1 however I downloaded UIFlow v3.0 from https://docs.m5stack.com/en/download and uploaded the latest version v1.10.1 to my Core Ink and now I have working Restart and Power On / Off :-)