I work in small sort and have been coming in early for set-up for over a year now. A guy on my line with higher seniority recently said he wanted to start doing it, so my supervisor kicked me off set-up and put him on. I had someone tell me that they aren't allowed to do that since he already had the option when I first started doing it. My supervisor is new and screws up a lot so I am not sure who's right.