I doubt you're actually working plano on a Saturday night unless they need you to set sales planners. That may just be how the hours were allocated for whatever you'll be doing, especially since your shift is split with hardlines. At my store, whichever hardlines TM is in seasonal during a major set (i.e. patio, BTC/BTS, Halloween, Christmas) is scheduled under Inventory because they're just in that one area and may be working PTM, etc.