I can currently trigger a smart campaign when somebody "Fills Out Form" and use as a constraint the form name and the web page where that form was hosted. However, though I can choose Form for a Person is Created Trigger, I can't specify the Page where the form was hosted, which means I can't reuse a basic form and trigger off of it depending on where it lives.
Ideally, since this is supported for the "Fills Out Form" trigger, this would be available whenever Form is a constraint.