[eluser]OverZealous[/eluser]
The HTMLForm extension isn't designed to handle multiple objects. It's a simple scaffolding-like extension. If you want to manipulate multiple objects, you'll have to manually build the form, or extend or customize the HTMLForm class.
You can save the data using the Array extension, but only if there are no name collisions. I don't see what the problem is here — just specify the fields and save the objects.
If you want something more complex, then you'll just have to manually create it or manually save it.
The extensions in DMZ are closer to examples than be-all-end-all solutions.
