For example, how do I figure out which layer the drain, source, and gate contacts are on? There are like a bunch of different layers there, so I really don't know how to understand what is going on. I see a bunch of squares that are probably vias, and a bunch of strips, one of which is probably some metal layer. But if I click on it or anything, it only selects the instance. I feel like this is really basic stuff that I'm just fundamentally not getting or doing wrong or whatever.