How can I make all plots equal height?

[Jeremy Webster]

I have a GraphicsLayoutWidget that contains 3 (or more) plots.  The x-axes are all the same, so it only makes sense to show them on the bottom plot (if there are a lot of plots, showing the values/labels on every one makes things very cluttered)

The problem is that because the bottom plot has the values visible, the plot area is shorter in height.  If I hide the values, the plots are equal height

Is there a way to constrain all the plots so that their heights are always equal? 

Or is there another way around this?

Thanks
J