Can I use AddressBook values to populate a webform field? I am currently trying to make lots of things work together. I'll try to put it simple without annoying details.

I work on a lawyer's site with drupal commerce installed, as well as AddressBook, Webform and FillPDF.  

Outside the commerce functionalities (selling legal templates), my client wants her users to share loads of necessary informations with her (about the case she needs to work on).
Among these information are… you guessed it: name and address.
These informations might be used (many times) in pdf generated from forms (like mandates etc.)

Do any of you know a way…
to pick an address already stored in AddressBook to re-use it in a WebForm, (let's say, via a token)?
---OR---
to fill The AddressBook values as well as user informations from data typed in a WebForm which I could grab later on (the other way round suits me fine).

The aim being to provide a unique place to register all the necessary infos,  in order to keep the site super-simple for middle aged people.
I was able, lately, to use a list of existing profiles in a node field. As these profiles are entities, an 'entity reference' field can do the job. But I can't offer the possibility to choose from a list of entities in a webform though.
Now, I get a token related to this newly created field but not to the current user.