The blog will help you change the properties of primary attribute of an entity. Modifying properties of primary attribute is disabled when you try to do it from “Primary Attribute” tab. However you can change the properties if you opened the attribute from Attributes left navigation instead.
1. Go to Attributes and select “name” i.e. primary attribute of entity. As shown in below screen shot.
3. The changes will also get reflected in Primary Attribute tab. Publish account and test the changes.