If you need support from Yola please contact us via email@example.com or make use of our live chat service! We are working on a new approach to community-based support and during this transition period we are not adding any new threads to this forum. Many thanks to everyone who has participated over the years and we look forward to unveiling a new peer-to-peer support system soon!
Custom HTML doesn't currently work with Mobile Publishing, so custom-coded elements won't be displayed on Mobile Publishing anyway. If you have e.g. Picture or Text Widgets which you want to hide on your Mobile version, you could add them to HTML Widgets, and then they won't be displayed with Mobile Publishing.
I'm afraid that it's not possible to hide particular pages from Mobile Publishing. I'm sorry that I don't have better news for you at this stage.