I don't know how to add field filters to simple questions in order to link them with a category in a Dashboard. I'm able to do it for native SQL questions, but not for pie graphs generated by simple questions.
Also in my dashbord when trying to link, for example a pie chart generated through a simple question I only get 3 options to filter and I'm not sure why only those 3, is there a way to add more ?
Thanks I would really appreciate your help