I’ve been using pattrstorage in b-patchers. I then have a number of instances of the b-patchers in a patch, using the usual #1(basicname) symbols to differentiate them. Autorestore is set to 1, so that each instance should load its own .xml file. This worked in Max 4, but all instances load 1(basicname).xml. Manually loading the files works.
I think there’s small bug here.
Also I have a large number of autopattrs in b-patchers, with a master pattrstorage in the main patch. Scrolling down in the ‘client window’ causes Max to crash.