Version: (using KDE KDE 3.1) Opened doc pages are opened in tabs as others source files ! I often open 10 QT Assistant pages and they are all in the taskbar, that isn't pretty. So, open they in tabs as Gideon do in good, but I want ANOTHER tabBar : one for the source code files and one for the docs because tabBar is too long, else (perhapse the files' tabBar at top and the docs' taBar at bottom of the screen).
I doubt having two tabbars is possible in current KDevelop. But now we have alternate solution - a separate KDevelop-based documentation viewer: KDevelop Assistant (kdevassistant program available in HEAD).