Renaming attachment field in document of record for a specific form.

I am creating a Document of record and want to rename the "Attachments" field to "Add copy of passport in attachments" for a specific form. I tried renaming it through page composer in sandbox but this name got changed in all the DOR form. I just want it to be changed for a specific DOR form.

Can anyone help me in archiving this.

Either renaming the field or adding a note below this field will work for me.