The extensions page contains a list of all tracks. For each track there is a control panel with the functions: on / off trackings, on / off notifications, recheck of updates, setup of filters and delete the track. There is a change history, the time of the last check and a link to the tracking page for each track. You can also set the automatic change check interval, the minimum check time is every minute, and the maximum check time is every 24 hours.
The track can have several statuses: