To edit the parameters of a function using the Edit Function dialog:

  1. Double-click the function icon in the canvas pane. The Edit Function dialog appears.

    Make sure you double-click the center function icon. Double-clicking the area bordering the function icon brings up the Edit XPath dialog.

  2. Edit the function parameters individually, as desired. Optionally click Help for more information about editing the parameters.

  3. Click the Add icon, represented by the green plus sign (+), to optionally add a new parameter.

  4. Click OK after you finish editing the parameters.