Hi,
Self-calculating input fields have got to be one of the highest-ranking feature requests that I can think of. When suggested previously, there seemed to be some enthusiasm for that feature. I would also find it beneficial to have pixel-based calibrations on the output points of IssyMap—using the arrow keys to get pixel-level adjustment is currently an option, but having addressable and publishable output points conforming to pixel scale would be next level.
Best Wishes
Russell