We have rearranged and simplified the overall setup needed for suggestion blocks to make it easier to configure.
At the Global Widget Settings level, you can define how many results to return and the values to exclude when the widget requests to return all suggestions. These suggestions apply to all widgets on your domain. All other detailed settings have moved to the Domain Settings, under Feature Configuration.
We have also reduced the number of settings available at the individual widget rule level to override the suggestion blocks configured in the global resources.