System Builder - Ductwork - Outlets - Re-calculate Airflow: Recalculate airflow for multiple rooms at one time.

Hi 

I am currently sizing ductwork in System builder and I noticed the airflows didn't match my heat load calc. I went through and found that although I had done multiple revisions of adjusting the heat load the air flow in the room for ductwork design did not get updated. I can only find a "recalculate airflow" button under the outlet's tab, but I have to go through and do each room one at a time. Is there a quicker way to do this? applying recalculate airflow to multiple rooms at once?

Cheers

Alex K

Wood and Grieve Engineers