Solution
It is not possible to configure the Boolean control properties to output values other than 0 and 1 (e.g., 0 and values bigger than 1). This is because the Boolean algebra is limited to 0s and 1s.
However, you can program the code to achieve different output values. Below is an example of how you can modify the output values of the Boolean control through coding:

Note: This image is a LabVIEW snippet, which includes LabVIEW code that you can reuse in your project. To use a snippet, right-click the image, save it to your computer, and drag the file onto your LabVIEW diagram.
The code above will output 3 when the Boolean control is TRUE and 0 when it is FALSE.