1. You can assign read-only access to data entry tabs by positioning the mouse pointer on the desired tab and right click your mouse.
  2. You will see Assign Security window with a Read Access box and Write Access box.  The users listed in those boxes have that type of access.  (Note * means all users have that access)
  3. For users you wish to assign only read access privileges, enter their user IDs separated by a comma with no spaces.  Then they should not be added to the write access box (or removed).