B&G Deckman - Manual (Page 69)

Chapter 4: Start display
4.4
by lat, long specify the position by entering latitude and
longitude
check port displays a dialog to show the history of
adjustments to this end of the line – see
below.
The check port option brings up the following dialog shown in Figure
4.2 giving you a history of adjustments to the end of the line, and allows
you to undo changes.
The move m column shows the distance in metres of each adjustment;
the most recent is on the top row. brg shows the bearing of each
adjustment from the previous buoy position; length m is the length of
the start line; and line WD is the line wind direction i.e. the wind
direction for the line to be neutral.
Use Undo and Redo to move the buoy back to a previous position.
Figure 4.2