Petiboot and booting 2 OS?

Hi all, i have my N2 up and running, CE ON EMMC And Android TV on a SD Card.

Can someone explain how to use Petiboot? Im not sure if it is working needs upgrading or if i am even using it correctly.

I can boot from emmc if plugged in, remove it and android tv boots from SD.

If i switch the switch petiboot loads, i add the order i want the boot it, then exit, but it just loads back to the same main menu and does not seem to save any of my settings?

Yeah sorted thanks :confused: