Thanks for all the input.
I do have tracking “best power for different durations over time” on the todo list. This would make it possible to plot your 5m power (and others) over time on the fitness page which might go someway towards what you are asking for.
I am also planning to do dfa a1 analysis when I can make time. Intervals.icu has been storing the HRV data for some time now to make that possible.
Workout builder options: For “free ride” I still need some indication of power or HR or pace to calculate load for the workout. There is a freeride keyword for Zwift. I have had requests for some of the others before.
TrainerDay integrates with Intervals.icu and provides workouts and plans. You can also create groups on Intervals.icu and share workouts for others in the group.
I would love to do some more clever training recommendation things but thats outside of my skillset. I only started learning about all of this 3 years ago and I am not a coach. I am hoping to be able to integrate something from someone much more clued up at some point (likely call out to their API).