Nested Accordion with check boxes select based on one condition in all accordion item.

The first accordion contains tittle(from aggregate) and in the content second accordion called and used check boxes for both tittle(from other aggregate)  and content items(from other aggregate)  also. Second accordion tittle and content items has a property of Boolean and  if the property is true to check automatically when before first accordion check box is placed is selected. 

I also need total selected both tittle and content of the second accordion.