Split Editor (two or more files visible at once)
Delphi can open an additional floating editor window. But this window always hides other stuff and doesn't stay at its placing while debugging the application. I'd like this editor window to be dockable next to the main editor as it is possible in most other IDEs I know.
There is a plugin which tries to achieve this...but it has to do some workarounds. Better would be a "native" implementation directly in the IDE: http://www.simonjstuart.com/delphi-stuff/radsplit/