Reserving and Releasing Elements
When a user reserves an element, that user gains exclusive
rights to update the data identified by that element. Other users
cannot update the element's data, until the element is released. An
element can be released by either the user who reserved it or by a
user who has Admin
rights for that element.
Consider reserving an element as a way to temporarily freeze the data that it identifies. A reservation expires automatically when the reserving user disconnects from the remote server or when the server shuts down.