RPC content not working properly Revit Arch 2013

[tace86152814]

Hi all,

I have downloaded the Archvision RPC Creator and have successfully created my own "test" RPC tree.

I have found a way to make my own RPC Family, and assign the Render Appearance Parameter to display the tree image in 3D render mode.

What I would like help with is the actual "Symbol" if you will, that represents my tree in 3D. I cannot find a way to select the basic rectangular shape that is within the family to create a representive tree outline like the native RPC's. I also cannot select the outline or anything once it is inserted into the project.

I have attached my files. The .rfa of the tree family, a project test where I have inserted a native RPC tree and the one I have made, and a rendering showing that it does in fact render as it is supposed to.

Has anyone else had any experience in making their own RPC content?
I am very new to all this revit stuff and am teaching myself the entire program through help from the forums, but I cannot find anything about this issue. Any help would be greatly appreciated!

I am using Revit Architecture 2013.

Thanks

****Have also noticed there is still no Prefix for 2013!!!****