Makes sense and I already thought about that but once you start on the road, there will be a demand for operators like "AND", "OR" and "NOT" and I couldn't wrap my head around how to do this from a UI perspective. I don't want to have complex dialogs to configure your search criteria like Mobile Sheets or Bandhelper do. So once I have a good idea on how to build the UI for this, I will add it, but currently I have no idea.