How to Add Door Panel Type Options?

[hliS658H]

I have a bifold door and am going to use BF to indicate the door panel type, but it is not listed, how can I add this option?

[ToanDN]

Add BF type to the nested panel family.

[hliS658H]

How? It is greyed out

[ToanDN]

Edit the main family, select a type of the nested family from the browser, right click and, edit type, duplicate, name the copy BF.

Share the family here.

[hliS658H]

Here is the family.