As an Organization Admin role, I would like to make a product Subtype

Thanks in advance.

As an Organization Admin role, I would like to make a product Subtype. 

When I tried to make a Subtype, I got the following message which said that "I don’t have an authorization to make a Subtype."

Do you know how to assign an authorization( i.e., making Subtype)  to an Organization Admin at Policy Administration?