[O] Orgmode publishing resursive

[gongzhitaao]

Suppose I have the following configuration

   ("test"
    :base-directory "src"
    :publishing-directory "dest"
    :publishing-function org-latex-publish-to-pdf
    :recursive t)

Is it possible to publish both org files to destination in the save level

E.g., publish from

src
├── dir1
│   └── a.org
└── dir2
    └── b.org

to

dest
├── a.pdf
└── b.pdf

I.e., it possible to apply a :flatten flag or somewhat?

Thank you!