Re: cus-misc: customize autoloads, environment variables (and key bindings)

[Richard Stallman]

I think the `repeat' customization widget is rather inconvenient to
use.

I think that it is a mistake for [Ins] and [Del] to look similar.
They do entirely different kinds of things.  [Del] applies to an
existing entry, but [Ins] does not.  Having two similar-looking
buttons for these two disparate operations can't help being confusing.

Also, there is no way to reorder existing entries except to delete
some and reinsert them from zero.

This suggests the idea that the interface should provide a way to
(1) delete any entry
(2) move any entry to a new position
(3) insert a new entry at the front

[Del] and [Move] would both apply to an existing entry, so it would
make sense to have these two buttons side by side.  Instead of [Ins],
which is cryptic, we could have [Add new entry].  There would only
be one such button, at the start of the list, so a long name is ok.

With this change, perhaps these methods of customizing key bindings
and env vars would be convenient enough to use.