The upper and lower bounds for the globalConstraint block are established in its dialog box. You only have to assign these values once; after that, the upper and lower bounds are remembered.
To set the upper and lower bounds
1. Right-click the globalConstraint block.
2. In the Upper Bound box, enter 0.4.
3. In the Lower Bound box, enter 0.0.
4. Click OK, or press ENTER.