If you click on the first file/folder, and then hold down 'Ctrl' at the same time as you click on each of the other files/folders you want to copy/move, you can copy/move them all at once. You can then drag/drop them to where you want, or right click on one of the highlighted files/folders and choose 'copy' or 'move'. This enables you to highlight multiple files/folders and copy/move them all. Even quicker: if your files/folders are all in sequence, click on the first one (e.g. at the top), then hold down 'shift' while you click on the last one and it will highlight all the files/folders in between.
Samsung Galaxy S8 review