Saving a locked field

I’m populating a form using LINKTOFORM()

I want fields that are populated to uneditable.

Uneditable fields are not saved. When editable, it saves correctly.

How do I save these fields as originally populated from LINKTOFORM() ?

One way to do it is to create a Form displaying only those columns that you want your user to edit. Even thought the pre populated fields with LINKTFORM are not shown, the values are stored.