For some reason I am able to set a default value for non-nullable fields on the cls_Address table, but not for OrderGroupAddressEx. I would think that allowing the ability to set non-nullable fields would require the ability to set default values because otherwise it will throw a database error when trying to create a non-nullable field without a default value for tables that already have records. This is seriously limiting my ability to use Epi and maintain normal best practices when it comes to data-modeling.
Please include this feature as soon as possible.
I agree with you but don't hold your breath, I doubt it will come anytime soon.
Allowing nulls is my recommendation, we have run into some rather nasty issues with non-null fields in the past as episerver sometimes creates objects without setting any custom meta fields and you will get an unhandled database exception when it is saved.