two multifields inside a multifield

Hi all,

In Touch UI How to create two multifield fields with in a multifield container?

I'm trying to create two multifield fields(for example groups and accounts) with in a multifield(list).

It is not allowing me to create a second Multifield(It is displaying out of the main multifield block).

Here extranames and extralogos are the the multifield dialogs.

Below imgae is the dialogs which are getting rendered.

Any help would be appreciated.

Thanks,

Hafeez