# Numeric pop-up scratchpad keys

The following table shows the keys on an external keyboard or keypad.

Keys | Descriptions
--- | ---
Decimal | The decimal button (.) on an external keyboard or keypad works only if the decimal point type is Implicit.
Minus | Press the minus key on an external keyboard or keypad to toggle the value between positive and negative.
Escape | To close the pop-up scratchpad without writing the value to the Value connection, press the ESC key on an external keyboard or keypad
Backspace | Press on an external keyboard or keypad to delete the right-most digit. Hold the button down to delete multiple digits. If there are no digits left in the scratchpad, the minus sign, if any, is removed.
Enter | Press on an external keyboard or keypad to write the value to the Value connection.
Delete | Press the Delete key on an external keyboard or keypad to clear the scratchpad.

## See also

Use a numeric pop-up scratchpad

How the numeric pop-ups work at run time

How values are calculated

Causes of run-time errors for the numeric pop-ups