Don't understand why polar doesn't support importing structured training

I use a polar watch and it runs satisfactorily, but have always been envious of garmin or wahoo devices that can import structured workouts, and now being able to manually edit the course inside the polar webpage, with settings for heart rate, power, etc. of course, I don’t understand why external import isn’t supported. Or if you guys have a good github project that solves this please share!

Hello. As from March 18th 2025 POLAR has released integration with TrainingPeaks allowing import/upload of structured workouts into the watches. Maybe there is light at the end of the tunnel so to do some thru intervals.icu

Question is if Polar opened their API a little… or it was in some close(d) collaboration with TP…