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Clean the School! controls come from the official listing: PC uses E to interact, Q to drop, T to wipe save and Click to use an item, while console maps RT for interact and place, B/O to drop, Y/triangle to cycle selection and the D-Pad for abilities, so every School action starts from a confirmed binding.
If a School placement still fails after a control reset, reselect one visible object and watch the live cue before repeating the input.