Hide item price in sales order

how to hide item price column only in sales order for some user?
i’m try to customize sales order and set perm level in item table row. but it hide all field in table.
i want to hide item price column only and display other column

thank’s

@rangsitw

  1. Check role of user -> Go to Role Permission Manager -> Add users role and set perm level
  2. Go to Customize form -> Select Sales order Item (child table) doctype -> Add the perm level to the Item price field.