There are three ways to set or change the comm mode in the Designer:
On the Designer toolbar, go to the Project menu and choose: Comm Off, Comm Read-Only, or Comm Read/Write.
If the Main Toolbar is enabled, go to Project, and you'll see the corresponding button for each Comm Mode. The currently selected Comm Mode will have its radio button filled in.
This will change the default Comm Mode that the designer starts up in for the current project.
In the Designer, either double-click on the Project > Properties node in Project Browser, or click on the Project > Properties command on the top menu.
The Project Properties window is displayed.
If a user is attempting to write to a project in the Designer or from a Client, and the Comm Mode is not enabled for Read/Write, they will get an error message. There are a couple places to check: