Is there any way to add one more cart form like you have new signup form? and product group description is still not visible
No, why you need this? Cart signup form should handle registrations only, nothing more. This will be available in next release.
I need to make separate signup pages for 4 categories , this is why I asked. If I add elements to regular signup form with separate groups , there is always the first group from top that is required. for example 4 dropdowns to select products from , if you select from second one and try to purchase it asks you to select from first one. Also is there any way to have the cart to be a default , not the signup? this would make things easier I guess
Sorry still can't get it. if you need separate signup pages for separate product categories, why you don;t use "signup" forms then? Just create four different signup forms and include each product category of corresponding signup form.