Hi, In a list contained in a notebook page, the display bloc is not called as expect: Likely I missed something, any idea? Thank. Keep safe. Hilaire connectPresenters    scripts whenSelectedItemChanged: [ :class |       methods selectPageIndex: 1.       ((methods pageAt: 1) activePresenter )          items: class methods;          display: [:aMethod | self halt. aMethod selector].       source    clearContent ]. newMethodsList    methods := self newNotebook.    methods       addPage: self instanceMethodsTab;       addPage: self classMethodsTab instanceMethodsTab    ^ SpNotebookPage       title: 'Methods' translated       provider: [ self newList ] -- Dr. Geo http://drgeo.eu