Editing Integer or Floating Point Values
Figures are the only values that can be entered into integer fields. Figures and decimal points can be entered into floating point fields. When these fields are preformatted, the periods (such as in 2.3) are set automatically.
To enter an integer or floating point value:

Type the figures, and if necessary, the decimal point.

Press the Up Arrow or Down Arrow key to increase or decrease the figures.
The control replaces the old figures from right to left.