Fitbit Charge 2 Help Please

Good morning everyone, hope you had a lovely Christmas.


My other half got me a Fitbit Charge 2 and I'm trying to figure out how to use it properly. My main forms of exercise are my home stationary bike and I follow a YouTube hiit routine.

My question is, does anyone know how I track my calories burnt via the Fitbit when I do these exercises and how do they appear on my MFP story? I read in the manual that the cycle function is only for proper outside pavement cycling. Shall I just select 'workout' for when I do hiit?

This watch is awesome and confusing at the same time!

Thank you in advance x