Great advice Drizzt80!
Yes, it probably is a lot easier and safer to feed in a separate cup / tub, especially if you don't have too many snakes. I put all of my babies in cups, but not my adults (would take too many large tubs).
Back when I used to keep clutches or half clutches of babies together until their first meal, I would throw pinks in and carefully watch them eat together (for their first meal). The free-for-all seemed to stimulate feeding response. But as you would expect, many took decided to start on opposite sides of the same pink. So I would cut the pink in half. More trouble than it was worth! So now I separate them before they even get their first meal. But if for some reason somebody did not want to feed in a tub, the scissors should be kept handy.