Sandbox / Friendly Option for Learning

I know you can set up the Analysis page to work through positions on your own, but is there a way to set up a board where my dad and I can work through openings / positions together? Ideally it would allow us to set up positions from scratch and not just from the beginning, but even a board where we could take moves back to see how different variations / choices work would be great. Still pretty new to the site, so if there's a tutorial on general use that I'm missing, I'd take that link too!  

You can use the Analysis Board like that using the Setup tab. There is a trash can icon that will clear the board and you can set it up however you want. Then when you load it works just like normal analysis.

Thanks. I see now how I could work through an opening, or clear the board and set it up for a position. But is there a way to share the screen in realtime with someone else and both have access to moving pieces around? I'm thinking of the online equivalent of sitting with a friend over a board and hashing things, where you could both move pieces, show / discuss different approaches or moves. 

gyat