Contact list trigger from survey completion in a multiple directory setup

Hello everyone!

I need to setup multiple contact directory to manage different clients panel.
It must be different directories and not only different mailing lists within the same directory.

I have seen that from the Distribution tab in Contacts, it is possible to see and use the different mailing lists for each of those directories.

In a survey, when adding a contact list trigger, I can only see the mailing lists from the default directory. Is there a way to select lists from another directory?

If not, I guess my only choice will be to add a Web Service call to the API at the end of the survey to create the contact in my mailing list.

Is there any other possibilities?

Thank you!