The HUD button on the main star map turns the HUD display on and off.
The HUD option on the main star map will give you a heads up display of most the data on the current hammer object, if the hammer object is
a ship or fighter wing and you are allowed to give orders to it.
The right display gives you information on the ship`s sub space drive, fuel,
distances, speed and hyper drive status. You will find at the bottom of the
display a list of distances between the currently set way points.
You can use the rainbow speed slider on the far right side to change the
ship`s speed. The red marker next to the rainbow slider lets you know what the
current speed setting is.