Permissions - Add to Entity based on Related Entity

Hi again,

I’d be grateful if anybody could help me with this one based on today’s release here:

I am trying to set up Time Tracking based on some Team Fibery suggestions I quoted above, and the new article here.. My big question is can I have an App for Time Tracking. The Type in question will be “Time Entries.” I’d like to relate this to any number of other Types. All users will have access to this “Time Entry” type. But the types that will be related to will have limited access, for example some Finance or Executive-level stuff. So all of the team will be tracking time in this one “Time Entry” Type. But I’d like to limit the ability for some users with limited permissions to see all related entities, because some of those they won’t have access to.

Hope that makes sense and glad for any guidance out there. I’m hoping this is also a use case for many who are trying to track time in Fibery!