Collapse 1st and 3rd Header through the UI
enter following line in the console which will update an existing entry:
grid.store.add({age: 14,city: "New Jearsey",cls: "row_8",color: "Orange",done: false,firstName: "Lisa",food: "Burger",id: 9,name: "Lisa I Anderson",percent: 30,rank: 70,rating: 4,relatedTo: 11,score: 890,surName: "Anderson",team: "Stockholm Tigers", title: "Row 8"})
tested on IE and bryntum 2.0.2