No free / random training possible?

Hi!,

I've just migrated from Huawei to Garmin, but some things are odd. For example Huawei Health allows to track something they call free training. So in case a session cannot be categorized as one of the template there's still possibility to track activity somehow.

I like to track a course in my gym - some fitness course containing elements of HIIT and kickboxing. Huawei tracks heart rate etc. and calculates effect on (an-)aerobic fitness (status). Venu 3 doesn't allow to use custom trainings, also doesn't provide a 'random' training. So how can I track these courses?

Thanks