Automatic address completion and general address handling

[Mark Flacy <mflacy1 comcast net>]

Greetings,

The help text that is part of Balsa 2.3.10 mentions that...

"Also, some address books are expensive to lookup. You will need then to press  
Ctrl-R to explicitly expand the alias."

That doesn't appear to be the case, both in that there isn't any way to tag an  
address book as being expensive and that Ctrl-R doesn't do anything that I  
could tell.

Searching my company's LDAP database for addresses is expensive; when balsa  
decides to try is also uncontrollable.  It is especially infuriating when I am  
in the middle of typing the name and Balsa attempts to perform the lookup.  It  
would be nice if we could configure a delay in keyboard input prior to  
trotting off to perform the search.  It would also be nice to have a key  
binding that would trigger the lookup when the auto-expand is set to false.   
I'd be happy with just the latter.

It would also be exceedingly nice to have a widget that allowed you to  
efficiently edit the various address lists in a reply.  I'm not certain what  
the interaction is, but attempting to highlight subsets of the address list in  
order to delete appears to trigger the LDAP lookup.