Viewer Pane Location

Today, my viewer pane started showing up on the bottom of the window when it was toggled on. I don't know what changed or how I accidentally moved it there. How can I move the viewer pane back to the normal right side of the window? Sorry in advance is this is trivial, but I couldn't figure it out.

Cheers...

Click the 2nd to last button in the viewer pane's border to toggle its position:


Doh! I should have guessed. Thanks so much for the quick tip!