You can cut, copy, rename, delete, and download the files/folder using the ChainIDE explorer panel. To perform any of these actions, you simply need to click on the explorer menu shown in the top left menu panel, once you click on the Explorer icon, you can see all the projects and files under the explorer panel, choose any file/folder that you want to delete, cut, copy, rename, or download, and right-click on the selected file/folder, you will get all the options there and you can do any of those actions easily.