When using Thunderbird i can specify which part of my external OpenLDAP tree
to search when e-mailing a user.

E.g. search Branch A for marketing staff, Branch B for research staff etc.
So i have multiple GALs from a drop down list.

Is anything like this possible using the web client

At present in the webclient all our users (3000+) appear in the GAL and it is difficult to distinguish between departments/sections.