Monitors

in New Users
Hi, New user here. I see in the preferences that there's an option to use multiple monitors, however i have selected this and see no change, how do i use it on the 2 montors?
Comments
What is "it"? Daz Studio? People do use that on two monitors, mainly by undocking the panes and dragging those to the second monitor while the fist is used solely for the viewport.