Multiple Roles for Store Vendors

I am just starting you use WFCM.

I want to assign other custom and built-in roles to the vendors on my site. I’m using a multiple user role plugin, but I am not able access any other role outside of the store vendor role when its active. For example, I will add Editor as the primary role and Store Vendor as the secondary, but the Store Vendor is the only one displayed for the user. The same happens vice versa.

Is there a way to assign multiple roles to Store Vendors?