hi, i used to open a system browser with an environment i built the following environment earleyEnvironment | packageNames | packageNames := OrderedCollection with: BaselineOfEarleyParser package packageName. packageNames addAll: (BaselineOfEarleyParser project version packages collect: [ :each | each name ]). ^ (RBBrowserEnvironment new forPackageNames: packageNames) label: 'Earley Parser Environment'; yourself and then i opent the system browser with it "protocol: environment" openBrowserInEarleyEnvironment ^ (Smalltalk tools browser browsedEnvironment: self earleyEnvironment) open now, i dont know how to do it with the new browser. any hints? suggestions? thanks. -- Bernardo E.C. Sent from a cheap desktop computer in South America.