I cannot set a sport such as ice hockey at an amateur level and ski mountaineering according to the various options
Just use Cardio for ice hockey. Or any other indoor Activity type, unless you play outdoors, in which case you can use Running or Cycling if you really nead the GPS tracking (though I doubt it would help getting any valuable data).
As for ski mountaineering - just use XC Ski.
Although not necessary, if you prefere, you can set up Custom Activity profiles for ice hockey and for ski mountaineering, by copying the above named activity types, and naming the custom profiles in the way you wish. It is easy - press the GPS button, scroll to + Add, select Copy Activity, select the one I mentioned, and then follow the rest of the operations until you save the new activity profile.
