Chapter 7 - Option+Enter Does not have Implement Members

In Android Studio v 3.1.3 (the latest version) clicking Option+Enter while hovering over ListSeclectionRecyclerViewAdapter (Chapter 7) does not present an option to Implement Members. To accomplish this, go to Code in the menu and select Implement Members or press Control+I.

@lincbarr Thank you for sharing the solution - much appreciated!