Is it possible you customise the menu which appears when user clicks on "Add New" , Currently it provides three options "Add new file" , "Add new folder" and "Upload file" , I want to hide or remove "Add new file" option from the menu and also when user clicks on "Upload file" I want to show my own dialog where user can select the folder to upload so user can upload to different folders instead of navigating to the folder and then uploading it