How to add workout to Jump Rope activities?

I downloaded an app from the garmin connect iq store
https://apps.garmin.com/es-ES/apps/cab001b5-034c-4acf-8572-ca640800b7a2

works well

Thank you.
Looks like this app doesn’t available for US market, unfortunately.

https://apps.garmin.com/en-US/apps/cab001b5-034c-4acf-8572-ca640800b7a2