[quote user="Robert Hook"]I believe you may be able to achieve an update for the desired view doing something like the pseudo-code below[/quote]
Thanks for the hint! It set me on a path of exploration which arrived at a reasonable result. I'll write it up and publish in the next day or two.
[quote user="Robert Hook"]dgnfile.GetViewGroups ().MakeActive (grp, false)[/quote]
It's a bit flishy-flashy! There's a visible glitch as we switch ViewGroup. Also, the user loses the Previous history option when right-clicking in the view.