@jch02140 The “Grid” and the “Matrix” are two different things!
The visible blue vertical and horizontal lines are the Matrix! if you toggle snap to Matrix mode this will snap the Nodes to the Matrix.
The Grid at the moment is invisible! you can’t see it, and can’t turn it on or of, but it’s there. Our grid right now is a 5 points grid, that means that if you work with snap to Grid mode your Nodes will be moved with 5 points intervals (even though the grid is invisible).
We will add the grid lines and more grid options soon, to make it more usable.