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Data Model-Specific Permissions
A user may have Data Model-specific permissions. That is, a user may be able to view Data Model A but not edit it, while he/she may be able to view AND edit Data Model B.
To set Data Model-Specific Permissions, click on the "Data Model ACL By User" action in the System menu.
This leads you to an index of users. Use Ctrl-F to find the one you want.
Selecting e.g. the user called "1 Alice", you will come to a page like so. In this case, there are no entries as the user "1 Alice" has just been created.
There are two selection boxes: One to select a DataModel, the second to select what permission for that DataModel to grant to the user.
Selecting a DataModel:
Selecting a permission:
Click "Grant":
The entry appears. You can then delete the entry by clicking the "Delete" button.