Plugin to display articles excerpt

Hi, I’m looking for an efficient plugin in order to display only excerpts on the home, archives, tags and categories pages. I found WP Limit Posts Automatically which work perfectly on the archives, tags and categories pages but note on my homepage where articles are still entirely displayed. My theme is eleven twenty maybe it has something to do with that ? Does anyone know the solution ? Or maybe someone knows a better plugin to do so in order to avoid duplicate content !
Thanks in advance