I can't find any plastic features. I remember when I used Inventor, it had some. Specifically, I'm looking for this one:

 
https://help.autodes...BD-BFA5-75878C2BA638

I have the basic license, so that might be the reason. 

If I don't have one, could you recommend where I can find examples and design tips for clip parts? 

The idea is to manufacture it by