Design (Diagrams, Tables)
Use the commands in the Design tab to create contents for a document (diagram or table) and assign diagram elements.
You can use a Edit Mode and Read-Only Mode for diagrams and tables for elements. The role you are currently using needs to have access rights to the diagram or table for you to be able to use the Edit Mode.
Please keep the Review>Access Control command group in mind for elements which can be individually locked.
You can use specific commands for diagrams and all tables in the Design tab.