Proposal for the simple selection of elements in a complex mesh.

One idea for inclusion in the trunk of a button to be added to those for the selection of vertices, edge and faces in the header of the 3D view (edit mode). Very useful for beginners and more immediate the shortcut CTRL + L.
I believe that the addition of this mode of selection can be especially useful in projects such as architectural, often where the meshes are composed of different elements.
I think the addition of this feature is simple but very useful for the users!
What do you think?
Thank you for your time.

http://www.blender.it/ipb_forum/uploads/monthly_10_2012/post-1820-0-76196200-1350379866_thumb.jpg

ops.
You can see a larger picture in this page:
http://www.blender.it/ipb_forum/index.php?/topic/22503-proposta-per-un-pulsante-per-la-selezione-degli-elementi-in-una-mesh-complessa/page__gopid__214000#entry214000