2. In the context menu of that item select 'browse package (p)' or
'refactoring scope > package' which both do the same.

BrowserEnvironment(Object)>>doesNotUnderstand: #forPackage:

OR2CmdPackageEnvironment>>environment

[] in OR2CmdPackageEnvironment(OR2CmdEnvironment)>>execute

... sometimes it's hard to be a newbie ..... but thank you !

Laurent