Is there any custom control available for using in widget configuration for selecting a particular Calendar Event ?

Hi,

Is there any custom  control available in Telligent platform for using in widget configuration for selecting a particular Calendar Event ?

I am trying to creating a widget for displaying a particular Calendar event which has been selected by the content editor of the site. For this I need to add a configuration property where I can provide a control for selecting the event. I couldn't find a custom control for the same in the documentation.