How to dock pallets

Hi.

I have just installed Draft Sight to my Macbook. It runs fine but I can't seem to dock my tool bars, pallets, and command window.

They float in front of my drawing so when I select the "fit" view option my drawing disappears behind to tool bars.

I just want it all fixed like it used to be on my windows PC, I've even tried the "Switch UI" button and it didn't seem to do anything; I know it's only a Beta version but any help would be greatly appreciated.