Flexible Navigation

We have a couple of courses that have main topics that apply to all participants with sub-topics that only apply to specific groups. We'd like the main topic lessons to be visible to all participants in the course navigation and the sub-topic lessons to be hidden in the course navigation (and arrived at by participants clicking on a button to take them to the hidden lesson.)

For example, in the below Table of Contents, I'd love to show the three green lessons and hide the three yellow lessons, but I'm required to either show or hide them all.

Currently, there is no option to hide specific lessons in Rise - Navigation is either enabled or disabled. Is there any plans to make navigation more flexible?