Omg I feel like an idiot!

Ok, so I feel like a heel! Lol today I found out that if you click on a road with a fence piece, it will automatically put it along the edge of the sidewalk. The side of the road you click on will put it on that side. Right click to remove.

I can't believe I just figured this out! I've been playing for like at least 8 years.. omg lol am I the only one who didn't know this?