Theme Twenty Sixteen: Only Summary/Excerpts on homepage? + comments on homepage?

SO I just began with a new blog using wordpress and fell in love with the twenty sixteen theme but for only one thing:
My homepage now shows full posts and has no visible comment/reply-options, as a reader you have to click on a post title before you can comment, but I can imagine that’s quite a hassle for most readers (scrolling up again, clicking, etc).

Is it possible to add a comment option on the home page or even better: make the posts excerpts so you have to click a continu reading button (like for example in the Corporately theme). I noticed that in settings > reading I can change ‘For each article in a feed’ the full blog to summary, but that doesn’t do anything.

The page I need help with: [log in to see the link]