These buttons are located on the top toolbar.
This button hides or shows the grid, either the normal grid or the isometric grid. The blue background indicates that the grid is visible.
This button toggles the grid snap. The grid snap is turned off by default.
The settings for the size of the grid snap are in the menu at the top of the screen
This button switches between a normal grid and an isometric grid.
The settings for the size of the isometric grid snap are in the menu at the top of the screen.
