How do I change a configuration parameter for all simulink blocks in my model?

I recently upgraded to 2016b from 2015a and now I'm getting many warnings about units inconsistency. I don't use or care about the units in these signals and want to get rid of the warnings. At the top level I changed the Configuration parameter for the Units inconsistency Message to "none" but I still get them. It seems that I need to change ALL of my blocks. This would be very tedious as there are hundreds at multiple levels. Is there a way I can run a script to change this parameter for all the blocks in the model? Or is there a better way to handle this?