Unlike later entries, The Sims 1 uses boolProp testingCheatsEnabled true (case-sensitive) after pressing Ctrl+Shift+C. This unlocks Shift-click debugging across the game.
motherlode — §50,000moveObjects on — Place objects anywhereaging off — Stop aging entirelyCombine these for near-total control over your neighborhood. Save often — debug actions can corrupt save files, especially when deleting objects or modifying Sims mid-interaction.