How to check a check box in checkboxgroup on load?

Hi!

How do you go about setting one or more checkboxes of a checkboxgroup as checked on load? The checkbox group is inside a pop-up and the view is dynamically built. I don't seem to have any option to achieve it from CL_WD_CHECKBOX_GROUP at least. Guess then the only way will be read the elements individually and set them as checked?

Thanks,

Praveen