Can I create just Custom Data Form fields at the inventory without asking user to input the answer?

Dear All,

Can I create just Custom Data Form fields at the inventory without asking user to input the answer?

What I would like to do is just to create those additional attribute at the inventory of the machine and have the LDMS admin input it instead of asking the users to do so. It is because I would like to store purchasing information which is not avilable to the end users. And at the same time, those purchasing information cannot be detected from the machines itself too.

Thanks and regards,

Winnie