Having trouble with nested components

[CleverCoder]

Good morning! I'm trying to put together some component diagrams (using EA 7.1 build 828), and I've run into a peculiar problem with nesting components.  Basically, it doesn't always work. For instance, I have a component inside a package. I create another component. I may or may NOT be able to drag and drop the second component into the first. This feature seems a bit unpredictable. I couldn't find any supporting documentation that helps explain the apparent rules of nesting components.
Does anyone know whats going on here?
Best regards!
-Sean

[CleverCoder]

Ha! I just figured it out. It was the Z-Order!  EA won't allow me to move a component "inside" of another unless the component that needs to be become the child has a higher Z-order. Go figure! (Wonder if there is a way to actually see this Z-order attribute.. hmm)
Cheers!