Re: [External] : Re: Concern about new binding.

[Alfred M. Szmidt]

   There are 13 keys on `C-x r' for registers, 9 for
   rectangles, and 4 for bookmarks.  Those 3 groups
   don't really belong on the same prefix key, IMO.
   (They could be on different prefix keys under
   `C-x r' - or somewhere else.)

Once upon a time, all those lived in a different space.  E.g., the
register commands used to be on C-x s (point-to-register), C-x j
(jump-to-register), C-x x (copy-to-register) and C-x g
(insert-register).  But to consolidate all of them, and free up many
C-x N keys, they got moved to C-x r N.