Directory Assistance new Directory type - adresslookup only

When Directory Assistance is used you can add one or more additional entries to for several reasons.

Currently you have to select at least one of the available options in "make this domain available to".

In case you want an additional directory only be used for address lookups, no authentication/authorization, no LDAP lookup or access, no Directory Sync there is a missing option to declare an addressbook entry in DA as Address-lookups only.

I see two options to achieve this.

in "make this domain available to" options either allow to choos none of the available types (meaning to be used for addresslookups) or add a new type here to marke this directory for name/addresslookup (which should be default for all new entries)

Last one would be potentially better to implement.

So this information could be later used f.e. to explizitly hide this directory in namelookup funcions f.e. mail-to, etc. where you don't want it.