About the Grid
Harmony is equipped with a traditional animation grid. You can use it as a reference while drawing to fit a given layout field chart, align elements, or simply see the center of your drawing. You can draw beyond the grid boundaries as it is only a visual reference.
In the Camera view, the Grid is visible when you select a drawing tool.
If you want to use the grid as a reference to plan camera motions, you can use the Field Chart Node and the Grid Node.