It's great that I can be of help with determining the hex viewer functionality. I should try it myself too. It seems to have dropped the manufacturer (many cycles of power on/off and testing/resetting), but I managed to set it again. I will need to take a new and longer log once the weather warms up a little, and perhaps try the hex viewer myself before dumping it here...
I have set the BT name and baud rate successfully and I don't believe I need to make other modifications, but thanks for the info!
Thanks, I use Onshape for modelling and PRUSA Mini for printing. Onshape is free to use, but the models you create are public. My previous knowledge of SolidWorks transferred well to it and even with no 3D modelling experience it is relatively easy to learn. Not a sponsored recommendation, but a recommendation 