Hello,
Regarding colour selection I suggest you use a “Color Scheme” as detailed in the knowledge database.
I did not handle a lot this type of tool but I think you can assign with this method a different colour to each sat or group of sats, or type of load (payload, debris…). But you will need to create à “Points Command” for each of them and filter as necessary using Masks.
Further help would need information about the structure of you data.
Regarding color manipulation you can find an interesting recent demo from Pamela on Youtube at https://youtu.be/P0mUWYPzGa8