bq78350 information

Hi, 

Could you please clarify the three points in red below ? since the bq78350 does not have a charger integrated what this "charge" support refers to ?

How connect an external charger on the battery, do we need to use a connector on the VCx pin of the bq76920?    

Image may be NSFW.
Clik here to view.

Thanks for your help, 

M.