Remember that there is another very good way to follow particular aircraft or fleets using Fleet Watch in the SmartView tab:
I am following all British Airways flights (BAW*) and the Emirates A380 aircraft (A6-EDA, A6-EDB, A6-EDC)
I can centre any of the aircraft in the map by double-clicking on the aircraft line in the Fleet Watch list and I can sort the list in any order by clicking on the list titles. Also, by ticking Show Only Fleet Watch Flights on the Map, I can remove all other aircraft from the map.
There are no alerts with Fleet Watch, but I wait until I get an alert via the normal Alerts function, then switch to Fleet Watch to find the aircraft.