Organize booking types

First idea. I have been using Tidycal extensively and now have a collection of booking types most of which are versions of others and which I don't use. I just use three or four booking types regularly out of abouit 13. However I can only see the entire collection on the booking types page and I have to hunt through to find the "live ones". I'm scared to delete any booking types in case there is an old link floating around on a website or email somewhere.

Suggestions:

1) Allow us to categorize booking types
2) Allow us to archive booking types without deletting them
3) Long shot: Allow us to retain deleted booking type URLs and point them to alternative booking types, e.g. if I have /booking-type-1 and I replace it with /booking-type-2, I want to be able to delete the booking type /booking-type-1 but point URL /booking-type-1 to /booking-type-2. (A quicker way to do this is just to allow mutiple pointers to the same booking type (e.g. /bt1, /bt2, /bt3 would all point to the same booking type. Then I could just delete a booking type and reuse the url on an existing booking type.)