OK, Alinea provided me a download link
Some more feedback from my side:
1. So far tried with FS-UAE only - but when I enable the mouse wheel scrolling, I can "scroll away" very far from the icons within the Workbench lister (see the attachment). I don't think this is a good idea.
2.
AddBuffers command could see some improvements - see for example this replacement
http://aminet.net/package/util/sys/AddBuffers . Instead of checking if DF0: exists and adding buffers, one could have something like
AddBufers DF?: 30 to add 30 buffers for each and every DF? drive present.