Try downloading the PC version of the CDLC and then converting it using the toolkit to a mac version. If you can get the tool kit open. I know it takes a bit to load.
You have to have Steam open before you launch RS Injector I'm pretty sure. So Launch Steam, then launch RS Injector. Works for me on my Mac running Mavericks.
Hey guys. I'm new to the forum and started working on a custom after reading through the tutorials. This was one of my first questions as well. I found if you click the note and then press SHIFT+End, it will select all the notes after and including the note you first clicked. Hope that helps!