Hi I wanted to extend SpCodePresenter so I created a new command and I added the new command manually in codeNavigationCommandsGroupWith: aPresenter | group | group := (CmCommandGroup named: 'Code search') asSpecGroup description: 'Search the system from code selection.'; beDisplayedAsSubMenu; yourself. self flag: #TODO. "This looks like a very bad way to do this :P" { KyoBrowseClassCommand . ^^^^ SpBrowseClassCommand. SpBrowseImplementorsCommand. SpBrowseSendersCommand. SpBrowseMethodReferencesCommand. SpBrowseMethodsMatchingStringInsensitiveCommand. SpBrowseMethodsMatchingStringSensitiveCommand. SpBrowseMethodsContainingStringCommand } do: [ :commandClass | group register: (commandClass forSpecContext: aPresenter) ]. ^ group My command worked but when I changed from KyoBrowseClassCommand class >> defaultShortcutKey ^ $k command mac | $k control win | $k control unix to KyoBrowseClassCommand class >> defaultShortcutKey ^ $k command mac , $b command mac | $k control win | $k control unix I could not open the playground So I reverted my changes but I cannot find the way to reinitialize SpCodePresenter S