It would be fantastic if we were able to have custom Layouts for floating windows.
Which would not interfere with our main window layout.
i have added this to Users Voice: Floating Windows layouts
For instance, the window below would be my basic study window (just one of several layouts that i have)

Now if we could save custom Floating window layouts, then while i am studying in the above window, i could open one of several custom Floating windows to act as tool windows.
Below are a couple of Floating tool windows that i use. This would be nice to be able to open one of the following custom Floating window layouts without disturbing my main study window.



It could be added as a section in the Layout as the mockup below shows
