I can't check on mine end cause i'm having an issue with templates, but you can change your templates, then try to see if the categories layout change when creating an event, ect.....they should all drop down when that field is clicked on, if they don't which i don't think they do, then look for a custom template in the market or @LeonidS or someone else that knows better here can help you. Do a back up before you make any code changes, i got to go now, may the force be with you!!!!