The Trigger Perpetual Single User License is supplied in the form of a USB security key (dongle). This needs to be plugged into a USB type A port on your computer. You may remove the dongle from your computer temporarily and Trigger will continue to function normally, for up to 5 hours. However whilst the dongle is detached you will not be able to save you project. Registered Trigger license holders can buy a temporary (software) license through this website.