To move the destination rollsign which is motorized, you first need to turn on the electric system by pressing [E]. If you're driving an SD77-SD81, you'll find a panel with two green buttons above your head. Press the upper button to shift the display one destination forward, the lower button shifts it one destination backwards. You can also press F8 and use the Page up/Page down keys to move the rollsign. On the SD83, you have to use the automatic controller above the windscreen: Set the destination number (taken from the sheet at your left) by clicking on the small + and - buttons and press the green button above. Then the rollsign automatically moves into position.