New test release, please test

[micheus]

The reason I need to be able to move the geometry window without it docking automatically is to have control of the window shape and size for rendering.

I didn't have time to modify the POV-Ray plugin, but I still think that it's a problem to be solved in the render plugins. Try to match the render camera with the Wings3D's camera settings.

Also, it is a little annoying that when viewing an image or texture and then moving it, it becomes docked when I just wanted to move it to the side to compare with another image.

Maybe a easy way...
Observe the place you hit the mouse over the title window. It will define if you will try to dock or not. Just avoid it position to get over the main Wings3D window. Is that understandable? I can record a video.

We don't have the old "drop down/up" style window anymore, so it almost doesn't make sense keep a window covering the main one. On the other hand, if you have a screen with a big resolution you may use the main window not maximized and have space for let these "float" windows.