I am using Facet API + Search API to develop Filtering for the data within my site. I am also using Ajax Facet Filters to process the selection as soon as it's clicked.
It all came out great but there's one slight problem. I can only select one option per category. As soon as I select an option, all the inactive options hide and only the active (clicked one) shows.
I want the option to select multiple option but with my settings of Facet API & Search API, there seems to be no option.
Here's the picture to explain.
I'll be very thankful for any assistance.
- picture taken from :- https://drupal.org/node/1669600#comment-6190924