1. If the sub account have agency payment then 'Agency Payment' value would be Yes.
1A. If the sub account have not agency payment then 'Agency Payment' value would be No.
2. This value come via follwoings:
A. Ethier admin needs to give Main ageny account fucntioanlity to the parent account of the sub account via registration module.
B. Or the admin needs to give Main agency account functionality to parent account via manage merchant account module, then sub account would inherit agency payment.