Using one Registration Form for more than one entity in Cart

I posted this question on the Entity Registration Issue Queue but I think its more suitable here since I haven't gotten a response in a long time. Below is the original question. I feel that others must of ran into this issue but I just looked through the entire Issue Queue and never saw anything about it which makes me feel that people just don't care about this or they have theirs set up differently then me.

Original Question:

I am using Entity Registration with Commerce Registration to build a site to signup for Courses and Events. In my case, it should be possible for someone to signup and purchase more than one course at a time. Though in order for that to happen you would add your two entities to the shopping cart, then you would be presented with 2 forms to fill out, same fields since they are both using the Course Registration Type, but still two forms since you have two entities in your cart. This doesn't seem like the biggest of problems until you have people purchases 5 classes at a time....

So, I am curious as to if the entities are referencing the same Registration Type, is it at all possible to show only 1 form and have that form work for all entities, updating their slot inventory too? My idea is if you add 5 Courses and 5 Events to your cart, you are present with only 1 Course Type Registration form and 1 Event Type Registration form.

If this is not possible, is there a way to include a "The information is the same in the other forms" checkbox that pre-populates the other registration form fieldsets with the same values the user put into the first? Similar to a copying address information to billing, but in a more wildcard fashion instead of listing out each individual field separately in the jquery.

http://drupal.org/node/1993616