When opening a template that is under version control, the check-out screen will appear.
In this window, you can select the required version of the template in the Select Version combo box, check-out the template for editing, or open the template without checking it out. A label (Active) near the version number, means that the selected version is currently active in the system, while others are disabled and simply stored for archival purposes.
If the template is already checked out, either by the checking out user or another, the checkout feature will be disabled. In this case, the user can open the document only. If the opening user is not the user who checked the template out, s/he will not be able to check the template back in, but only save it as an additional revision, that will not be active.
If the user has sufficient permissions, (or the user that opened the template is the one who checked the template out) - the Cancel Check Out button will be enabled. Canceling check-out will lose all the changes made to the template, and no changes will be inserted into the system.