Ben with pavel we are looking at Nautilus extensions because some of them should be moved to the extended packages. Now I was wondering why TClassDescription is extended with menu see below. I imagine that this is because you do not have a classWrapper for the UI. Is it correct? Then I wonder if there is not a pattern where we should wrap elements and attach to the wrapper such behavior. codeRewritingClass: aBuilder | target | target := aBuilder model. (aBuilder item: #'Rewrite Code') action: [ target refactor rewriteCode ]; parent: #'Code Rewriting'; order: 0. (aBuilder item: #'Search Code') action: [ target refactor searchCode ]; parent: #'Code Rewriting'; order: 100. (aBuilder item: #'Type class') action: [ target refactor typeClass ]; parent: #'Code Rewriting'; order: 200; withSeparatorAfter. (aBuilder item: #'Category Regex') action: [ target refactor categoryRegex ]; parent: #'Code Rewriting'; order: 300. (aBuilder item: #'Class Regex') action: [ target refactor classRegex ]; parent: #'Code Rewriting'; order: 400. (aBuilder item: #'Protocol Regex') action: [ target refactor protocolRegex ]; parent: #'Code Rewriting'; order: 500. (aBuilder item: #'Source Regex') action: [ target refactor sourceRegex ]; parent: #'Code Rewriting'; order: 600; withSeparatorAfter.