Subplots | How to add master axis titles

I’ve created a subplot where all of the plots share the same x/y-axis type (Energy for the y-axis and voltage for the x-axis). I’d like to add a master axis title for the y- and x-axis (see the attached figure), but haven’t found a solution.

Is this capability not currently supported?

Is there any way to emulate the behavior I’m interested in?

Thank you in advance.