Set Metro IE to full lockdown for kiosk mode

[BCoSK]

I have searched everywhere for this answer. Kiosk mode/assigned access is excellent. But it appears that you can only use IE Modern (Metro) for assigned access and the problem with that is I have found no way to completely lock down IE Modern. I can only partially lock it down but users can still get to the address bar and settings very easily.
I either need some advice on setting IE to complete lockdown or how to set IE desktop for Assigned Access.