How to Close Mates In Assembly Feature Manager

I've noticed in SW2015 that I can't close the mates in the feature manager of an assembly. Just to make sure I wasn't seeing things I opened SW2014 and mates were normally closed. now I don't even have a choice. I find this annoying. It's probably even more annoying than the backward Copy With Mates in SW2015. Is there any way to fix this?

SolidworksAssemblies