mangaging registration form

I have some questions about the configuration of the registration form.
In the attachement, you can see what i mean.

When a customer signs in for two events, it is not necessary that he has to give his name twice, for each event.

Where can i manage this form like I want? Is there a possibility that I make a registration form that is needed for just one event?
E.g. when there are two prices to choose for this one event.

Question 2: The customer can't see the total amount of the price he has to pay. Where can ik fix this?

Thanks for all your answers!

Greetz,
Cindy