> Is there a way to update only part of the websites 
in 
> the web addresses list?  I keep a local mirror of 
some 
> rather large websites, using the projects to group 
> them by type.  Sometimes I only want to add a new 

No, this is not yet possible - you'll have to update 
all sites. Note that if the project was interrupted, 
you can 'continue' the interrupted mirror quickly