i think i understand

1. Paste "easy repaint" into the lug save you are customizing
2. read the paint blocks with arrows pointing to colours to understand what colour goes where on the truck
3. replace the colours with either the provided colours or your own custom colours ("eyedrop" or copy colours by holding ctrl with the paint tool selected and clicking on a colour)
4.once finished, reselect the "easy repaint" tool and "move" it in the selection menu but don't paste it again to cut it from the save
I hope this helps.

how do i copy the colors?