Entrance Events and Palette #6

Well I never experimented with command 60 but now I know better what it does... But from what I see:

Code:

CA/EF85: 60 Change background layer $0E to palette $0C
CA/EF88: 60 Change background layer $0F to palette $19

this means: Change background layer 14 to palette 12 and change background layer 15 to palette 31...How do you know which layer is which NPC such as the cranes?

Edit: As for NPC repetitive movements set in a entrance event I have explained it a bit an I gave an example recently with the event dump how it's achieved. Check the last post of this thread