Sub-form

Hi there,

I need a form, that can be executed i several steps…:

Something like this:

Headline1 – Headline2 – Headline3 – Headline4
Field1a
Field1b
Field1c
Field1d
[NEXT]
********
Headline1 – Headline2 – Headline3 – Headline4
Field2a
Field2b
Field2c
Field2d
[NEXT]
********
Headline1 – Headline2 – Headline3 – Headline4
Field3a
Field3b
Field3c
Field3d
[NEXT]
********
Headline1 – Headline2 – Headline3 – Headline4
Field4a
Field4b
Field4c
Field4d
[SEND]
********

These 4 sub-forms should only send 1 (one) mail, containing the content of every sub-form.

With wich plugin can I make this – and HOW? A tutorial along with the plugin would be nice 😉