Presenter keys

• → Space PgDnNext step
• ← PgUpPrevious step
• 1–6Pick a transform on a "you choose" step
• RReset this step (clear the class's guesses)
• NNew random sample of the same experiment
• DShow the raw numbers
• TLight / dark
• HomeBack to the first step
• EscClose an overlay

A presentation remote usually sends PgUp/PgDn, so it drives this directly.