GX80 settings - cannot access "picture size" or "quality"

[luminescence]

Hi there, quick question as I have a short window of shooting time to sort out settings in my new GX80. I cannot find in the manual or camera menu how to activate "picture size" and "quality" - they are both greyed out. So all the stills I am taking at the moment are set to 4K burst which is a pain - but I also cannot find a way to deactivate that either. Am I missing something really simple here or is there something wrong with the camera? Or is some other setting preventing these settings from being visible? The menu stays the same regardless of whether the dial is set to PASM IA etc. Thanks for your attention!

[luminescence]

Answering my own question here - it seems that the only way to turn off 4K is on the touch screen, not in the menu. Sorted now.

[RobD]

The 4k button is the way to activate or deactivate 4k burst.