From within the Web Modeler you can always start an instance of the process to test it. You will need to
click the Start Process button on the top right of the modeler and add a JSON object containing
some information to start the process:
{"imageLoc": "https://davidgs.com/images/headshot.png", "isPicture": true }
That picture exists, and will be used to start an instance of the process to be evaluated.