Edit Empty Fields for Synced Devices

The abilty to edit the empty fields of assets that were synced. Google Admin Devices that are synced do not have the option of inputting the PO or Custom Fields. This would be perfect for any internal info as well such as the asset state having a field say that it is in good/bad condion with a custom field. Even if its just the aditional informato section that is able to be edited would be nice.