differentiate vessels in water

[viktor]

hmmm, you ever have, multiple vessels in the water but all in the exact same direction? not bunched together but spaced but dunno what is what because they are all in the same direction?

well we can see the ships in the water but cant tell which is which, is there an easily implimentable way of making them differentiable?

[SekoETC]

I was thinking of the exact same thing yesterday. You should be able to tell which one of two vessels in the same direction is closer, or more northernly if they're approximately at the same distance.

[Doug R.]

I like.