Hi ,
One of our clients has requested a KPI tracking the time (hh:mm) on the y- axis. Currently Metabase has a restriction that only numeric values can be plotted on said axis. To get around this we display the time field as a decimal . It will be helpfully being able to plot non numeric values on the time y-axis or being able to change the separator style from decimal point to a colon could also be a viable work around.