@mike_student I have managed to fix data in TumblerColumn with JS and Component TumblerColumn { id: lastCheckDay Component.onCompleted: { var days = []; for (var i = 1; i <= 31; ++i) { days.push(i); } lastCheckDay.model = days; } } this way allows me to change values for TumblerColumn without Delegate and that is why I am not loosing QT styles I will this answer here, maybe it can be helpful for someone