how I can login in Designer by Authentication module "Active Directory user account(manual input/role based)"

Hello!

Can anyone tell me how I can login in Designer by Authentication module "Active Directory user account(manual input/role based)"?
I tried assign Designer in Programs for Authentication module "Active Directory user account(manual input/role based)", but when I press
commit to database, I receive error "You are not allowed to create default objects or assignments".

In Identity Manager manual a found: "Assigning authentication modules to applications
If create custom authentication modules, assign them to the existing programs. 
In general, you do not need to change assignments of predefined authentication modules.", but I need it.