Sure. I usually have two editor windows open, although they can be a bit small. Sometimes, I just want a third editor window that I can move to another monitor, so I create a third one and float it. I would like this third editor window to behave just like the other two, just that it's not docked. In the main window, I have other Tool Windows, such as Bookmarks, Clipboards, References, Find Symbol, and Search Results, all docked. None of these windows have any control/link to the floated third editor window. For instance, if I want to double clip a clipboard to paste something, when I move the mouse to the main window to access the docked Clipboard Tool Window, one of the other two docked editor window tabs is highlighted and the clipboard contents are pasted to that window.
The References window is similar. If I double click a reference, it always causes one of the main editor windows to jump to the referenced location.
As for the Find dialog, it just has querky behavior, that is probably just a side-effect of the behaviors mentioned above.
Hopefully, that helps clarify. Again, I just want a third floating editor window without having to duplicate all the existing Tool Windows to get the Tools to work.
Jeff