openatrium2 space section

We have spaces that are public, but want to keep certain sections of that space private. I understand I do this by by adding groups, users, or teams to the visibility settings. Given the nature of this site, it is not practical to create groups for each project space, or add individual users to each private section. I created an administrative group, and use it to make the spaces private. This works for me much the same as the admin role. Anyone in it can see whatever they want, so I'm good with that.

Is there an easy way to disable the display of the space and section title? Since the space and section are already displayed in the menu, the user will know where they are.
regards