Hi Steve,
Could you please refer the video file and let me know if this is what you needed.
http://www.syncfusion.com/Support/user/uploads/Video_2e542a3.zipThe attached video file displays the hidden button automatically when you click on the hidden button using 'Add or Remove buttons'.
Kindly let me know if I misunderstood your requirement.
Thanks for your patience.
Regards,
Jaya