Stacked Objects 3/16-in apart. How to know when touching face?

[endlessfix]

Missing "Arrange" in 2017 SK Make

I’m new to Sketchup but I’ve used Illustrator, Photoshop, etc for years. Yes I know, totally different software, just mentioned that to give ya’ll an idea of my competence… kinda. To get up to speed with Sketchup I purchase training from Lynda. Ok, so I started a simple 3D sketch and I’m creating objects and they’re not aligned. I go to Help KnowledgeBase and search for "Arrange" The results have examples with “Select Arrange and choose Align” Just like AI ! Great. One problem My Mak…