When you are in the milestone screen (and the modules screen) the only screens you can navigate to is the study profile, new profile or open profile. The user should be able to navigate to all the different screens from any screen. If this was a design consideration, then the screens you can’t get to should be “greyed out” and it should be discussed as a team again. There is no reason why a user shouldn’t be able to freely navigate.
When you are in the milestone screen (and the modules screen) the only screens you can navigate to is the study profile, new profile or open profile. The user should be able to navigate to all the different screens from any screen. If this was a design consideration, then the screens you can’t get to should be “greyed out” and it should be discussed as a team again. There is no reason why a user shouldn’t be able to freely navigate.