Add the option to create a custom metric
Currently when tracking metrics for athletes or oneself, you must choose from a preset selection of options, which obviously does not include every possible concern. When coaching athletes with less common concerns, it would be very useful to be able to add a custom metric so that one could track that specific symptom without having to write a note about it each time. One example of this would be migraine headache. Another would be an athlete with intermittent chronotropic incompetence, or HR issues related to intermittent beta blocker usage, for example for arrhythmia or performance anxiety. Adding every foreseeable medical issue is unrealistic, but allowing the coach/athlete to customize a metric to their needs would be highly useful

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Jose Manuel Menéndez Molina commented
I hope you’re doing well. As a coach using TrainingPeaks, I’m planning to build some custom charts in WKO for a group of athletes. We’d like to track specific HRV metrics—like RMSSD, SDNN, HF, LF, and the LF/HF ratio—and we need a way to record these metrics directly in TrainingPeaks with custom names.
Currently, it seems there’s no built-in option for adding fully custom metrics. We’d love to see if there’s a way to enable this because we’re more than willing to share the resulting custom WKO charts with you or anyone else who might benefit. We’re actually hoping to run some studies with this group of athletes and these specific HRV data points.
If there’s any possibility to add this feature or if you have any suggestions, that would be fantastic. Thank you so much for your help!