We're really interested in making the index editing dynamic. E.g. as you modify the weights, all metrics update in real time.
Additionally, we're interested in side-by-side comparisons as well, similar to a code "diff" on Github. So you can see how your modifications changed performance relative to a past version.
We'd love to get your feedback on this. If you have more thoughts, feel free to reach us at hello [at] enombic [dot] com