Hi @Chairman001, yes the Iro does support the Hunter mini-clik, please see the wiring diagram below:
As @ramblinwreck mentioned,
To connect the Hunter mini-clik, please only transfer the top two "SEN" wires (red/white) correspond to your Mini-Clik rain sensor. The other wires below it shouldn't be going to the rain sensor, but if they do, please let me know and we'll figure it out.
Hope this helps!