Frosty likes to chase the other three away from food, I put out about five separate piles in each of the litter trays!!!
Mottle always chases Peaches (Mottle is a buck and peaches a doe) and Sunshine always chases his mum, Autumn. Must be a buck thing.
Sounds like you are doing what you can.
All mine seem to settle down together (at the same pile) in the end.