Selectable Pens on the Tempest App Graph

Is it possible to display the temperature only without dewpoint or vise versa on the tempest app? When the RH% is very low and the temp/DP spread is very large, the Y-axis becomes very large making it impossible to discern changes in temp or DP.

It is not uncommon here in the western US for the temperature to be 60 or more degrees above DP, making the temperature scale very large, say from 20-80 degrees when both variable are displayed at the same time.

Maybe add a check box to select or deselect temp and DP?