This is the behavior for collapsing the ribbon and showing the the small image for RadButtonElement: https://docs.telerik.com/devtools/winforms/controls/ribbonbar/designing-radribbonbar/using-large-and-small-images
A similar functionality should be available for the ActionElement in RadDropDownButtonElement and RadSplitButtonElement.
Enable duplication of RadRibbonBar group's element.
Add support for MDI list menu item.
Add support for the RadRibbonBars to have their items merged while in MDI mode.
add additional minimize options: - minimize to panel titles - minimize to panel buttons