Dynamically track form location in page layout

I'm testing an opt-in form at different locations of a page (top, sidebar, lightbox, etc.). Ideally I could create just one form (instead of one for each test) and dynamically track the location. Anyone know of a way that can be done?

Yes I've thought about that, but how to populate the field with the location was hanging me up.

Ah - I see now. I was thinking of using shortcode like

[gravityforms id=1 field_values='form_location=Top']

But you would probably need use the widget to place the form in your sidebar and the gravity forms widget doesn't have any shortcode way to prepopulate a field. Not sure about lightbox either.

There is probably some jquery magic someone can suggest for you that you could insert into a html field in the form to populate a hidden field. Then you would just change that depending on where the form was located.

If you can live with copies of the same form the advantage is gravity forms natively tracks view and entry counts and gives you a conversion rate so you can see at a glance how it's going. You are probably aware making a copy of a form is super quick once the first one is sorted out.

Also just noticed the advanced field option for a hidden field lets you set a default value. So if you are happy to set the field manually for every test run you could use the same form all the time with the hidden field containing the form location.