Sometimes it is mandatory to align some components and/or check if they lined up properly. Then Guide lines could help. Many photo/graphics editors have them. You just pull a guide line from the ruler on the left or top and then you can snap components/tracks to it. Also option to disable guide line snapping needed. Also guide lines should be more visible than grid lines.
Take a look how it is made in GIMP. Blue lines are guide lines and you can snap selection/layers/etc to them to align.
Brand new interactions and interfaces. 
Easy to use and quick to get started. 
we have added this feature in the list, maybe we will support it in the future.
thank you