Fire accordion component from outside control (checkbox)

Is it possible to use a control from outside the control? I see no methods for things like accordion. I need to fire an accordion when a checkbox is clicked. See image.

expandfromcheckbox

What does "fire an accordion" mean?

Sorry. It means to expand or open it.

Should have been possible by setting the Selected property of an item. There is some issue with that at the moment though. We will investigate.