No label options for registration type

See my comment http://drupal.org/node/1595002#comment-6060196

Not actually sure what you mean by registration type. Only fields or properties made into pseudo fields via hook_field_extra_fields() are available in that interface.

I meant the "who are you registering for" dropdown at the top of the form, which in my view needs (a) a description field, and (b) should be presented with options that make sense to the reader of the form, which in my view the current form doesn't.

I believe (a) the dropdown should only be presented at all if there is a choice to make, i.e. is are more than one option and (b) that the description should explain what the option means, remembering that the people filling in the form could be relative novices in such things.

Does this make sense?

How would you expand upon "who are you registering for", for an element description?

As I did in the comment referenced in #1