There are several different view layouts that can be selected while in Presenter View. These view options are displayed as tabs along the top of Presenter View and clicking on a tab will immediately switch to that view. These 4 view options will always include the Presenter chat box along the bottom of the screen.
In addition to these, you can also switch to an expanded view by clicking "Expand" in the Presenter controls.
Live view is the default view that is loaded upon joining a Studio session as a presenter. This view brings up the live program feed enlarged near the middle of the screen and shows your camera in a smaller box off to the left. This view allows you to see what is happening live and is great for when you aren't currently live and just want to sit back and watch.
The second view option, Multiview, allows you to see all of the other presenters with their cameras turned on. To the left, you can see the program output along with your own camera. This is a good view layout to choose when you are live and interviewing or talking with other presenters.
Screen 1 & 2
Another view layout that you can choose is to bring the current screen shares up as an enlarged box with live program and your camera off to the left. If the screen share is the current topic of conversation, using this view might be optimal.
Up to 2 screen shares can be active at once, so screen 1 & 2 allow you to choose which one you want to view.
The final view layout that is available in Presenter view is the expanded layout. This takes your current view layout and expands it, filling your browser tab and displaying your own camera at the top left, which you can reposition.
Going into expanded mode also provides a couple new options in the presenter controls (along the bottom), clicking "browser fullscreen" will take your selected view into fullscreen mode.
To leave the expanded view, simply click the "Minimize" button.