Mendix has lots of great tools, one of them is the demo_users-tab on the right of the screen, making it easy to switch from user ‘Driver’ to user ‘Chef’ or whatever user. At several projects we created a demo_user for every project-role. This is very useful for everybody:
As far as I know this is only available on the local running app and on the free node. Would be lovely to have this also available on all other (non-production) environments.