Put you caret next to an open, you'll see that the brace is highlighted in a light grey. No, me neither, of course all my code is beautiful, but let's just say I did have a some files like that. Have you ever worked with some messy code where you've got 3 levels of nested ifs and a foreach around it inside an inner class wrapped up in a lambda? And you just can't figure out where your brace ends after scrolling down 200 lines?
I don't always know exactly what line I need to go to but I often have a bit of an idea like 'My OnDisappearing is right down the bottom, 300 will do' or 'I need some usings, this is an easy one, line 1'. To use it, press Command + L, type in a number, hit enter, and you're done. This is a nifty hot key to let you jump around a file super quickly without having to reach for the mouse. Don't worry, I'm not talking about the much maligned statement from programming's past. Even though I've been using VS Mac for years, every now and then I discover an awesome feature hiding behind a hotkey. I use others now and then, and there's some great stuff out there, but VS Mac is where I feel at home. Visual Studio for Mac is my one true love when it comes to IDEs.