Map NSTableView to the "Edit" menu (ie cut/copy/past/select all)

Currently when a user is in one of the NSTableView's on my window, the Edit menu options are all greyed out. Where do I go about (for example) mapping the "Edi开发者_如何转开发t -> Select All" menu option to do a select all on the current NSTableView?

Edit > Select All is enabled automatically if the focus is on the NSTableView and it allows the multiple selection.