Selecting craft
You can select a craft by either clicking in the watchlist or clicking on the icon. When the balloon appears you can click the select link to change craft.
What is UTC?
Universal Time Coordinated. A universal time based on the Greenwich Meridian used by the military and in aviation. Greenwich Mean Time (GMT) can be considered approximately equivalent to Universal Time Coordinated (UTC). GMT as such is now obsolete however, being replaced by UTC. Using this timezone/standard avoids errors and problems associated with different time zones and summer times operational in different countries.
Panning around
Click and drag on the map to move the map to a new postion. Any craft you have selected will pan into view if their position has changed.
Zooming
You can drag the slider on the top right of the screen to zoom in or out. You can also use the scrollwheel.