I noticed recently that the possibility to add a data field to workouts, that I have not seen before - HR Slope. From searching it appears to be a minimalistic/short version of the Recovery heart rate analysis that pops up after workouts. But what is really the value it is exposing? Heart Rate change per second? If I am not mistaken there are decimals in the value which would indicate a measurement window > 1 second.
Also - I find no references to HR Slope in documentation - assuming it is not usable in app development? I also looked in vscode/extensions/suunto.suuntoplus-editor-1.42.0/node_modules/@suunto-internal/suuntoplus-tools/lib/project/ but did not find anything that seemingly would match