How to Keep Model Tree expanded when going back to it? Creo3 M100

[depker]

May be a simple solution, but have to ask:

How do I Keep Model Tree expanded when going back to it after going to one of the part models?

Has to be a setting someplace I hope.

Using Creo3 M100.

I do have Model Tree window on different monitor. Not docked.

[Ian_Cure]

Looks as though you didn't get any answer. I'd also like to know how other users, working with large assemblies, mange the model tree collapse when returning to the assembly after working within a part...