When writing scripts in the buttons and using the offline help documentation, it is a major PITA that the offline help docs window (launched from Opus via F1 or Help) is part of the same taskbar button. So we have the lister window itself, docs, Customize dialog and the Command Editor all under the same taskbar button.
It is very difficult and inconvenient switching between them like this, especially because the Command Editor window is topmost and we need to minimize it constantly when consulting the docs and restore it when entering the code, so all of them being lumped together in the single taskbar button is making it even more inconvenient.
If both the offline docs and the Command Editor button would have their own separate taskbar buttons, that would remedy this situation in my opinion.