ClimbPro data in FIt file

Hi.

Maybe it's not stricttly related to climbpro, but i'm trying to crearte a csv file to be converted to FIT that has information about climbs.

When I create a course in garmin and send it to my watch, garmin identifies climbs and shows them during activity.

When I create my CSV file, convert it to the fit, that data is missing. 

Do you know where it's stored or how it should look like ?

Kind Regards

Bartosz