Yes anyone can pick them up, but from I can recall there are a very limited number of these shifts. I know for a fact some PAC shifts without training were available during summer and early fall when its still busy from summer vacation. These shifts were for the Move it, Shake it, Celebrate it St parade, and youre mostly telling people to walk on one side of the sidewalk to maintain the traffic flow. I worked PAC regularly from Sept - Jan so I had all the fun of Holiday Party PAC Shifts and I never had to pick up a PAC shift from another role so I am not an expert. But if you do want to pick up a PAC shift I would plan it on a day you wanna spend the whole day at MK, you will realize how long the commute to clocktower, thur the utilidor, and be in costume at the main entrance (where PAC clock into work.) Probably not worth the cash, but totally worth the experience, working Main Street Operations is so fun! Be ready for mad guests tho. haha