Populate MultiTV drop down inside eform

Hello everybody,
I'm using in the great MultiTV of Jako to manage a group of dates.
Now I'm working on a request form where I want to populate a drop down list with these dates.

Outside eForms I'm able to generate the list and this is my call - [!multiTV? &tvName=`calendario-date` &docid=`[*id*]` &display=`10` &outerTpl=`outer-multi-calendar` &rowTpl=`row-multi-calendar`!]

But how I have to do in the eform template? Probably I have to use a eFormOnBeforeFormParse but i don't know how.

Thanks for any help.

You could use this: https://github.com/Jako/phxeform