another wiring question

[evknot0127]

i have a switch panel which controls all of my boats electrical...question is the one switch on the panel controls my deck lights/ courtesy lights but i just purchased led rop lights to go under and around the front of my gunnel on both sides...how do i tie the led rope lights into the initial switch for the deck lights so that when i hit the switch for the deck lights all three of them come on ( 3 as in both courtesy lights, led strips on both sides of console and the rop elight running underneath the gunnel)??