I would like to be able to filter a schools layer in the filter app by using drop-down lists on multiple fields (School Type, Performance Level, Operating Agency). However, each filter layer only gets a single "Apply Filter" button and the drop down menus do not include an "All" value. This means that I cannot select to view all charter schools because in order to activate the filter I also have to select a performance value. The solution would be to either have an "All Values" option in each of the filter drop downs, or have an "Apply Filter" button for each of the drop down menus. Any help on a solution to this would be great, thanks!