hi! dont know if you've figured this out already, but there's a way to do this! 

in the upper right-hand corner of your page there should be your icon and username. hover over that, and then click on the "folders" button (should be under "Manage")

then the first thing that should pop up is "Set Default Folder - This is the folder that visitors see first when viewing your characters." there you can select what folder you want to display, or in this case "all folders" if you want to display all characters

remember to press "set default" once you've chosen!