Logo toolbar shows buttons for basic drawings, like FORWARD, BACKWARD, RIGHT and LEFT. This simulates a pen, specially for children who want to make simple drawings.
Since it is a pen, it would be good to have a kind of PENUP (unpressed) / PENDOWN (pressed) button, because children may want to pen up and to pen down, compared to a paper sheet.
Of course it is possible to move the turtle with the mouse, but this is not so intuitive.
Thanks for this suggestion. Seems quite reasonable. Status set to NEW.