Help with multi page patches on Organelle S2

I’m trying to port a patch I wrote on my PC to the Organelle, and have realized I need multiple pages to make it work easily for a user. I’ve spent a fair amount of time looking at other patches and trying to make sense of how they work, but I’m really not getting it… I’m not really a programmer… Is there a ‘template’ or something similar? Help gratefully appreciated…

This is a starting point for a multipage patch with menu navigation:

Thank you! I’ll be investigating that asap.