Numeric keypad
Fields declare a keypad kind; click the field to pop the pad.
Place a numeric keypad on the page first (you can minimize it on the design canvas to a corner icon; double-click to restore).
On soft text, embedded text, text-input boxes, or table cells, enable Allow keypad input and pick a keypad kind (you do not bind a specific keypad instance). Effect demo and export both work as: tap the field → pad opens → type → OK writes the variable.
Password fields can mask the value and attach a “hold to reveal” control. A value of 0 shows as empty.
Changing page closes the keypad.