Could zwift consider something like this, perhaps an external tool on this site?
For example using an 50-34 w/ 11-27 @ 100% difficulty = that ‘feel’ of resistance/gears in zwift…
If I change the resistance, what is the new simulated cassette equivalent? E.g.
50-34 w/ 11-27 @ 50% difficulty = the ‘feel’ of 50-34 w/ 11-32 (or something like that)