Stair Handrailing - Multiple Rail Heights

Hello,

With the current handrailing macro, it doesn't have the ability (that I know of) to have two different Railing Heights & Mid Rail Heights which is needed in Australia using Webforge stanchions.
One different height being 485 / 457 = 942mm on the handrail stringers and when it leaves the handrail back to standard 560 / 457 = 1017mm

current work around is dropping the macro and modifying it manually or try separate stringer handrail to landing handrail.
would be nice if this was added as an option into the macro somehow.

cheers