Hi 123adama - please don't shout (typing in capitals) - it hurts our eyes and is hard to read.
Once you have clicked on the flight you want, click the Pan Map With Active Flight button on the toolbar (a plane with a yellow line in the corners), and, as long as you don't click anything else, the flight will stay selected and centred on the map.
As long as the flight is in range of your RadarBox or a RadarBox that is sharing on the network, and as long as you have a network subscription, you'll be able to track any flight.
Hope that helps
Rod
