When creating grating, the Hatch Scale no longer works. You set it to 64" and when the grating is created it is at a 5" scale and you have to fix it in the Properties palette. This use to work correctly but has not in 2016 or 2017 including 2017.1
Also, even though others have put this in the past it still has not been added, We need the ability to add a hole to grating and plate. You can do this in AutoCAD Architecture and AutoCAD MEP but not in Plant.