WTH: I can select which users can see a single tab of a dashboard, but I can not do this for an entire dashboard

I can only set the permission which use can set a single dashboard tab. But it would be great to be able to do that for an entire dashboard.

Use-cases:

  • Kids dashboard with more specific controls
  • Guest users which should have a much more simple dashboard.

Closing duplicate. Please vote here: WTH2 - WTH!? No RBAC - Role Based Access Control? (Users & Groups rights)