You are aware of that DopusMAgellan is a Wb replacement right? , much like Ambient is, its a feature packed tool/lister for anything and everything.
Magellan _can_ be used as a WB replacement, but you don't have to. You can use it as a separate program as well too. You can even config it to work like traditional two view file manager. But of course to get the best of it, you should run it as replacement.
Magellan2 runs still well on MorphOS2.x. Actually better than in 1.4 as the font requester doesn't crash anymore

Quote from MZ:
I'm still running it with the latest MorphOS too and would probably donate something for open sourcing as it would give possibility to fix small little issues and add compatibility etc.
Although Ambient has advanced a lot and it's hands down the best default desktop for any Amiga platform ever, but it still isn't up to Magellan2 in efficiency and all the features. Ambient is on good path to clone Magellan2 features, but there's still something missing, partly done, simplified (not bad thing always) or just have some technical limitations to be as good as on Magellan2.
Some features why I'm using Magellan2 still with Ambient: Magellan2's Start Menus are much better than Ambient Panels currently, integrated ftp, very versatile hotkey settings, scripts, nice arexx features, better inline editing in listers (in Magellan2 you can edit all fields like dates and protection bits), copying filenames to clipboard works better, etc.
In any case Ambient also has some new more modern features, support for modern techniques and eye candy etc, which obsoletes the option to run Magellan2 as complete desktop replacement.
But luckily both Ambient and Magellan2 can coexist just fine on the same screen with couple of 3rd party launchers. You can use whichever you want for the current task. And Magellan2's Start Menus, hotkeys etc work "transparently" on Ambient screen so that it isn't that noticeable what's the underlying program which does the job.