private void CheckAgainstList() {
var QATControlsNames = this.QATControls.Items.OfType<RibbonItemListDisplay>().Select(_ => _.ItemName).ToArray();
foreach (var item in this.AllControls.Items.OfType<RibbonItemListDisplay>().Where(_ => QATControlsNames.Contains(_.ItemName)).ToArray()) {
this.AllControls.Items.Remove(item);
}
}