Set floor contact in Human IK

[MRAnim8or]

I'm pretty new to Human IK and I'm trying to change the height of the floor plane, or better yet connect an actual plane to HIK so that I can adjust it interactively.  I saw this old youtube video, but it looks like the attribute he links to no longer exists:  https://www.youtube.com/watch?v=l9cLzRk-eWY   Is there a new way to do this? I can find nothing in the documentation....Human IK seems to be pretty sparsely documented in general.  Thanks for your help.

[l.newman]

Go to the definition tab then select the blue button, there should now be an option under 'Edit Character definition' > 'Edit HIK properties' 🙂
Hope that helps!

[MRAnim8or]

Thanks, I've been to that screen though.  Its a pretty big menu, maybe I'm missing where you set the ground plane in it.  There's a submenu called Floor Contact, but in it all you can do is turn on Floor Contact and tweak several of the options. As far as I can tell you can't assign a specific nurbs plane as the floor or specify the height of a floor plane.