I agree this is a much needed feature. We use ScreenConnect to manage and control dozens of machines. Sometimes we need remote access without internet when we're on the ground trying to set things up (most of our machines operate video walls and thus operate heedlessly) and it would be great to have this feature. The only reason we need another program (and pay for it) is that it supports local VNC from any system that supports VNC (Mac, Windows). Seeing that this request has been around for four years and has more upvotes than some approved and developing features is too bad.
Customer support service by UserEcho