Chronoforms 4.0 How to call datepicker on custom form?

This seems like a common question, yet I can't find any info on how to create a datepicker popup in a custom form. I've tried to copy the code from a working form using the wizard, but no love.
How can I call a datepicker to popup when I have a custom form?

Hi tadosborn,

I think that you can take any text input and add one of the standard datepicker classes to it: cf_date_picker, cf_time_picker or cf_datetime_picker. You may also need to set Load JavaScript files to Yes on the form General tab.

You can also use the custom datepicker actions. Set a class in the action and add an input with the same class.

Bob

Thank you. Your prompt responses are always appreciated!