I want to create Subtypes for a feature class, but the option is not active.
Under Feature Class Property I created some Fields, but the Subtypes tab is not active.
I can't choose Subtype Field and can't type under Code or Description.
I did try to create subtypes for another map, even open a new document and created a new File Geodatabase, new feature class, but Subtype Tab is not working.
I am using ArcMap 10.7.