Multiple web forms and identifying responses in Zoho

Multiple web forms and identifying responses in Zoho

We are newbies but would be very grateful for some pointers to help us set-up multiple web forms for different types of request from users, then be able to identify the user by type of request in Zoho.

For example we have users completing a form so we can then snail mail them a printed brochure, plus a web form for users to download a brochure.

So how can we can add an invisible field, or otherwise, to each form that will tell us which form the user has used?

Thanks for your help,

D.