Is there any way to make a FileManager widget that will allow for the uploading of both files and folders? I see that the 'directory' option of the Upload prevents the selection of files - https://docs.telerik.com/kendo-ui/api/javascript/ui/upload/configuration/directory - but I can't understand the logic here. Why would this be the case? In any event, if this must be the case, then is there a way to replace the upload widget inside of the FileManager widget on the fly, via a custom toolbar option? Even that would suffice. Or possibly have two upload widgets associated with the FileManager? One for files, and one for directories? If I have to, I'll implement a complete destruction and rebuild of the FileManager in order to facilitate this, but that's obviously far from ideal, especially if users are wanting to upload several different things in a single sitting.