I want to use the 245 for cycling, cardio and weight training. Due to issues with my knees I cannot/should not run anymore. Since most metrics depend on VO2max. Does 245 support VO2max while walking or to be set manually? VA3 I owned before just calculated VO2max while walking until a first run. After only while running. Unfortunately firstbeat which is providing all the metrics does not have a fitness test as Polar.