It’s possible to use the 2U Layout and insert the 2 divs on the same form.
I tried and I obtained good results if I append the layout to a div that is inserted in the form, the structure is something like this:
<form> <div "content"> <div "html for cell a"></div> <div "html for cell b"></div> </div> </form>
With this solution I have encountered some problem with height, margins, spacing, padding, etc.
The real problems start when I try to append the layout to the document.body, In this case I’m not able to submit the data from the 2 layout cells.