Problem With [REGISTRATION_DETAIL] in Reminder

Hello There,

I want the auto-reminder emails in Events Booking to show the full details of the event including location, time, date, etc. The only way that it seems possible to do this is by relisting their Registration Details. According to the instructions in the backend of tags that can be used in the e-mail body for the Reminder E-mail, the tag [REGISTRATION_DETAIL] should function. But when I did a test e-mail/reminder it was not working properly. Please see attached screen shots.

I also had two unrelated questions:

1) Is there a way as of yet for someone to be able to cancel their registration without making a log-in username/password?

2) In JoomDonation there is a way to make registering a username and password optional, and a way to add text explaining why it would be good to have a user name and password. In Event Booking if I turn on the ability to register as a user, it is only possible to add it as a required field. Any way around this?