The following commands on the Graphics Viewer menu can be used to organise multiple graphics windows.
Refresh
Redisplays the current graph.
Close All
Closes all graphs currently open in the viewer.
Next
Cycles through the stack of open windows, making the next window current and bringing it up above any other open windows.
Previous
Cycles through the stack of open windows, making the previous window current and bringing it up above any other open windows.
Windows
Opens the Windows dialog which lets you switch the current display to another graph and also close any graphs you have finished looking at.