Our Demo application >> CommandBar examples are quite useful about getting started experience with RadCommandBar. It is located In the installation folder of the suite:
C:\Program Files (x86)\Progress\Telerik UI for WinForms R1 2023\Examples\QuickStart\bin
I hope this information helps. If you need any further assistance please don't hesitate to contact me.
Regards,
Dess | Tech Support Engineer, Principal
Progress Telerik