Hi R. v. d. Voorden,
I think the best approach would be to navigate to a different view instead of embedding a different view when you choose the process.
In this scenario you would have, as an example, 3 views in a window: First view to choose process, one view to process1 and other to process2. Depending on the process chosen by the user, you simply use plug navigation to direct the user to a different view instead of embedding it with the 'choose' action.
Regards,
Felipe