automatically create URL upon form submission

Hi, thanks for this module.

I would like to have a form for my content type and then I'm using 'content type: extras' module so when you save the form you can straight away create another.
I would like the second form to have some of the fields pre-populated from the first form.

eg I'm creating nodes about teachers. The first form the user fills out the info about the teacher, school taught in, years at school. bibliography, photos and email. Then if the teacher also taught at another school I want the user to just be able click 'save add another' and the teachers name, bibliography, photos and email will be pre-populated from the last form and the user only needs to fill out the school and years.

I've figured out how to do this if I manually edit the URL eg www.myschool/node/add/teacher?edit[field_rabbi_name][und]="Mr teacher" but I can't figure out how do I make the URL add the edit edit[field_rabbi_name][und]="Mr teacher automatically upon form submission?
I feel like I'm missing something basic in understanding how the module works.
I would appreciate some clarity here, thanks.