A lot of potential here to be the best CSS Grid visual editor, but there's some bugs to be ironed out for sure. Currently I can't finish my grid. I'm trying to

A lot of potential here to be the best CSS Grid visual editor, but there's some bugs to be ironed out for sure. Currently I can't finish my grid. I'm trying to increase the number of columns on my "Body" grid but when I hit the "Add" column button it's adding columns to my "Header" grid, despite my "Body" grid being selected. I also seem to be stuck in my "Body" grid and can't select other grids. Chrome 65 on Ubuntu.