TOPIC: Register for multiple events at one time?

Hey guys, just wondering how you can let people register for multiple events at one time? I see that DT Register has this feature but can not figure out how to use it.

Or is there a way for DT Register to auto fill users info when they go to register?

Here is the page I have set up. I would like people to be able to register for multiple events and would also like their information to be auto filled if they decide to register for single events.

Thanks
Jay