I'd used the studio tool to make a menu: (Bảo Hiểm Xã Hội) with submenu: (Hồ Sơ), (Điều Chỉnh), (Lịch Sử)

In submenu: (Điều Chỉnh). I created the default value.

Then in the FORM VIEW of submenu: (Hồ Sơ), I want to show the default value from submenu: (Điều Chỉnh) by using many2one.

But it just shows FALSE in the selection box.
So... how to show the specific parameter from the submenu: (Điều Chỉnh)?
Please help. Thank You!
i believe that problem is you Odoo showing
x_namefield. I don't know how to change that in studio. Maybe make it related field to the desired field.