Nice tool. Not sure where I'd use it right now, but it works well! The new points get appended to the top of the table in the tool itself, which I didn't expect. In the exported JSON the points are in the order they were generated. You could consider adding some dots on the image where the points have been clicked, and if you like, some further linking of the dots with the rows in the table would be cool. Eg: Serial numbers, or hover effects on the points and table, etc. Well done!