How Active Model works?

Hi,

I am starting with MicroStation and I have several doubts.

The active view is the current view which has the focus but what is the active view when a view group has all views disabled?

I understand that an active view determines the active Model. If I change the current view or change the active View Group, active Model is another one.

But what happens if my View Group (especially if it is a Multi-model View Group), has all views disabled?. What will be the active Model?

Moreover, if I have several view groups with the same Model and I change the active Model then MicroStation changes the active View Group? I supose that MicroStation choose the most recent View Group which has that model. Is this correct?

Thanks in advance.