something we run into often is that a user may or may not have rights to view/edit content even though they are the same UserType.
This gets a bit wierd in mendix and theres no real good way to solve who can see what without doing wierd checks and reloads.
we have an application where teams can create edit and view projects.
The teammembers are dynamic and can be added or deleted based on the project creator.
The Admin wants a datamatrix where they can check-on certain users with certain rights to access certain contents.
Im also not sure how to solve this, but this is something we run into quite a lot.