Study editing

In this study



there are squares and possible moves marked. How to do this in a study? I couldn't find a way and did the wrong search to find an asnwer.

If you hold down the shift key and click a square, you get a circle. If you hold down the shift key and drag between squares, you get an arrow.

You can draw in 4 colors:
shift and left mouse button is green.
shift and right mouse button is red.
shift and alt and left mouse button is blue.
shift and alt and right mouse button is yellow.

Thank you very much. :)