IS IT POSSIBLE TO OPEN MULTI PORTS IN THE SAME BLUEPRINT!?

HELLO
I AM TRYING TO CREATE LCD METERS WITH ARDUINO
I SUCCESSFULLY MADE THE FIRST STEPS
LOCATED THE VARIABLES I NEED
OPEN PORT
CLOSE PORT
PRINT A STRING (IN PC SCREEN)
MODIFYING THE SPEEDS TO KM/H OR ALTITUDE WITH METERS AND SO
I HAVE 4 ARDUINO NANO AND WANTED TO USE EACH ONE WITH LCD SCREEN
IS IT POSSIBLE TO OPEN 4 DIFFERENT PORT TOGETHER IN THE SAME BLUEPRINT (I MUST DO IT IN 1 PLACE WHERE I HAVE THE BEGIN PLAY /END PLAY EVENTS
THX FOR HELP !