Yes, you can. Starting version 6.1 the license code is applied on the Viewer side only. The Host actually doesn't care who connects to it.
Let me give you an example. A flying duck can be shot at by multiple hunters, and different hunters can have a license to shoot a different number of ducks each. Their license doesn't tell what specific ducks they can shoot, it only sets the total limit. Also, the same duck can be simultaneously shot by multiple hunters.
So the duck is a Host, hunters are Viewers, however stupid this example might sound. :)