1. Add a comment
2. Select Type- either "Command Line Option" or "File"
3. If File is selected then select "Connection Type"- either "Input" or "Output"
4. Add a prefix, if given, in the form "-nameofprefix"

1. Scroll down using the bar on the right
2. If the parameter is optional, make sure that the "Optional" checkbox is checked.
3. Click Save (*Note if you do not click save and simply click "OK" at the bottom of the window, the parameter you just entered will not be saved.)

1. To continue adding parameters click "New Parameter" and follow the steps outlined above.

To add a parameter to an existing module

1. Right click on module
2. Click on "Edit Function"

1. Click on "New Parameter"
2. Enter a label and comment
3. select type of parameter
4. if needed, specify connection type in drag-down list

1. Specify if optional or not
2. Click "Save" and then click "OK"