If a 'breakby' column is added in Sisense widget, currently it shows value of one item at a time in tooltip. Here is a solution to display values of all 'breakby' items in tooltip
widget.on('processresult', function(se, ev){
ev.result.tooltip.shared = true
ev.result.tooltip.enabled = true
})
widget.on("beforedatapointtooltip", function (se, args){
args.cancel=true;
});