You can associate a Credit Card with a bill that is due at a later date. In the Edit/New bill screen, select a credit card or enter a new one. You can associate a card with a bill that is split into a schedule of payments with different due dates.In this case, the credit card will come up (to be charged) when the individual split is due.

(See www.chabadms.com/files/ccpi.pdf for more details and how to actually charge the card.)