How to create several directories in proof output?

Hi all,
I wonder if you have tried separating the histograms to several directories under gDirectory in the proof output file? Could you please show how can I do it?
Thank you very much.

Dear hsji,

Sorry for the late reply.
I am afraid I do not understand exactly what you would like to achieve.
Could you please explain in which output file you would like to create directories?
Also could you specify which version of ROOT you are using?

G. Ganis