Releasing Elements and Project Data
Elements that you currently own can be released with just one click using the Release command from the Teamwork menu or in the Teamwork Palette. If you wish, you can release only the selected elements, or if nothing is selected, then all your reservations will be released with the Release All command. It is highly recommended that you release those elements and data that you are not using, so other team members can access them.
In larger companies, it is good practice to establish a company policy that all users must do a Release All at the end of each working day.