Hi, riding horses and a variety of other occupational activities (such as farm work) are actually included in the Fitbit activity database. You could log those activities and it should adjust your TDEE. I find it easier to search for an activity if I use the phone app and am not too specific in the search, so for riding horses I would try: "riding" or "horse" (if the first doesn't work). I would not recommend logging these activities to MFP. I think there can be a problem with elevating your allowance too much if you log hours of exercise to MFP. I haven't found this to be the case logging hours of activity to Fitbit. The MFP activity level is meant to reflect how active you are outside your planned workouts. I actually log exercise or other activity (if I need to) to Fitbit. But I think it could work well for your purposes to log your non-step workout here and your horse riding and other activities to fitbit directly. I think I would try leaving your MFP activity level set to active for now. Be sure and enable "negative adjustments" because this will alert you to whether you chose too high an activity level. I would give it a week and see whether you are earning a zero or positive adjustment most days (the zero adjustment is only good if you have negative adjustments enabled, otherwise it often means you would have earned a negative. That is assuming all is working as it should). If you ere really taking 15k-20k steps you are not sedentary and from what you describe I don't think you are sedentary. Active is probably about right (maybe even very active).