Hi, im trying to compare 2 field many2one

x_studio_product_1

1. Freezer
2. laundry 

x_studio_product_type_1

beverage & wines freezer

all in ones

but when im going to create the domain in the produc type field i can create this sentences because i dont have the field (Current Field)

[("x_studio_product_root", "=", x_studio_product_type_1)]

I dont have access to the backend because im the final user