Tools
Ship: click to drop, move to aim the bow, click to lock, then type a name + Enter (blank = no name).
Arrow: press & drag from start to end.
Draw: press & drag a free line; style & arrowheads in Selected.
Note: click where the label should go.
Esc cancel · Del delete · Ctrl+C/V copy/paste · Ctrl+Z/Y undo/redo