The Redline Arrow command draws arrow objects interactivly on the canvas.
1: Select the command, and all other redline draw commands are locked and rendered with white background.
2: Select the end-point in the arrow.
3: Select following points in the arrow
4: Finish with double-click or [Esc] in the location of the arrow-head.
5: The command will repeat until the Redline Arrow icon is clicked again, now all other locked draw commands turns gray and are released: