While PipBoxer is attached to a chart use the following steps to change the input variables of it.

1. Open the chart that PipBoxer is attached to it.
2. Press F7. A dialog box appears. Click the "Inputs" tab (see image).
3. Scroll down to find the variable you need to change.
4. Double-click on the value of the variable. Make necessary changes.
5. Click OK to exit the dialog box (You might need to click OK twice).

(click image to view in a new window)