I downloaded AutoCadLT 2016 for Mac. My professor has an olderversion on his Windows PC. He's trying to show me how to use it, but the configurations from Windows to Mac are totally different. What are the equivalent buttons on Mac to Windows and viceversa? He pulled up something called design center which had all of his previous designs and saved stuff that he could just click and drag into the window to open it. How do I do that on my Mac? I dont think it's still called design center because when I searched for it there were "no results found". Also, how do I work this thing. He typed on his L@12' and could choose an angle for his line, but I had to drag mine. I'm sure there is a way to type out the command, but how? 

I am aware of the tutorials and will sit down this weekend to watch some and learn the program. But specifically I need to know what buttons on mine get me to the buttons on his. He cant help me out if he cant find certain things on my version because the name, location, or function was changed.