Surface Hub 3

Good afternoon

I ran into an issue with the surface hub; so I'm attempting to cast the screen from my surface hub to multiple monitors (TV/Displays) and I'm not finding an option to. 

Where can I find the options menu to cast to an external display?

I've found that there's an accessory that does it (I think a wireless adapter?) 

is there a way to connect without the need to cord connections?

Thank you!