Need to add grid system to motion zones

Zones are nice but for those of us who have unavoidable foilage in the zone a grid system like other security cameras use would benefit us all. This way you could click areas that are in your zone that you don't wan't want to activate a motion activity. I have a lot of recordings cause the branches on trees within a zone are moving. I have used the grid system setting up my sons cameras and I loved it.