That works, although not perfectly, but there is something better: EDJP has features built specifically for this. To elaborate, once you've set the boxel survey up, it'll automatically put the next system in your clipboard (so that you can just paste it in the galaxy map), and can also be set to skip ones that are on EDSM or if you've already visited them before.
I have downloaded that but not really looked into it much, I will check it out!