[Guide][Help Request]How to customize your menu into dropdown menus

[Webbstre]

No problem. Questions asked are questions answered... or so I hope :P

I tried fiddling around with the if conditional more earlier, but it leads me to believe my conclusions may be off. I don't know enough about code to understand how the mod author achieved it with his mod, although I can find the parts that must be relevant. For example, searching for "blog" in the xml product file leads to various code that somehow makes it so the blog button can be removed, without disabling the sub-navbar. If I could just understanding how it does what it does in that code I could answer my own question X_X