I see that Gopro is trialling/beta'ing the ability to scan a QR code with the camera and use it to change the settings.
I dont have the dev skills, but I wonder if it would be possible for a Connect IQ widget to display these QR codes from a list predefined in an app ? They're just a picture after all, so the app would need to create the QR according to the GoPro specs, but all the CIQ widget would need to do would be display it on the watch.
I see there is a 'any picture' widget that pulls a picture from a url - so something along those lines but with it cached so it doesn't need network access.