MULTIPLY
Requires: Write access to configure a questionnaire calculation.
Multiplies numeric values. Input: nonempty numeric lists. Output: one product, or transformed lists with Per item on.
Aggregate uses the first value of each selected list in stored input order. Example: 2, 4, 6 → 48. Per item with Value 2: [2, 4] → [4, 8]. An empty aggregate returns 1.