Reference Plane options for Roofs

[Laszlo Nagy]

Slabs now have Reference Plane, which can be set to Top, Bottom, Core Top, Core Bottom. Additionally, we have commands to modify the reference plane location of an existing Slab.

I wish to have these same options available for Roofs as well.
One common scenario where this would be helpful can be seen in the following thread:

https://community.graphisoft.com/t5/Design-forum/Roof-Wall-Connection/td-p/223445?t=47470

[Laszlo Nagy]

Long-time wish:

https://community.graphisoft.com/t5/Wishes/Reference-Plane-options-for-Roofs/m-p/225150#M14121

[snow]

...even more reason to bring it on top... in remembrance again... and to underline the urgency...😉

[Roderick_Anderson]

I will add my vote to this as well !

[vdentello]

Well, it's turning 10 this year!
I hope It never gets to college, in a blink of an eye it's gonna be 18 and long gone and independent!

Since we're forced to use Roofs to model ramps, it's pretty painful to go back and reset it's contstant thickness back to 20 for example, as you interact with it, it changes it's height because this is not the default parameter, it's the offset on Y. 

Plus, you have to go from floor to floor, and not have a little annoying bouncing edge that has to be fixed every single time.