Changing the highest ridge point/ calculating overall height to mid roof

[sunnyside]

Hello, is it possible to change the highest ridge point dimension to calculate the overall height at the point between the eaves and ridge line? My municipality requires structures with a sloped roof of 5/12 and greater, to calculate the overall height point at mid roof, between the eaves and ridge. Any slopes 4/12 and less are considered flat roofs and are measured to the ridge for overall height.  

[sunnyside]

Specifically when using the auto story pole dimensions tool in a side elevation. I was hoping for a quick setting option for this but I can not seem to locate anything of the sort. 

[sunnyside]

Maybe one version down the road. Thanks for your help!