Multiplus ac couple with fronius - 3phase question

Hi all,

3x phase setup with 3x Multiplus 2 - 10kva units.

It will be grid connected and setup for zero feed in

Looking to do ac coupling with fronius.. I’ve done it before in single phase setups however not 3x phase

is it possible to use 3x single phase primo units - ie one on each phase ? Or do you have to use a symo unit