Does SCID allow to draw arrows on the board? I figured out that holding shift allows me to highlight a square I click on, but no luck finding the shortcut for arrows. Using SCID Vs. PC 4.9.
I use Scid 4.2.2, which is quite old, but maybe what works there also works in Scid vs PC.

You can open the Comment Editor window, and besides editing the comment and adding things to squares, you can also click and drag over the board to create arrows.

Make sure to store the comment before you enter the next move, or it will be lost!