Just another "swipe" tip....If you have a mass of text to delete.. press left button where you need to start the deletion...that leaves the cursor there.. then move your cursor to the end section, whilst holding down the "shift" key. Then left click again. That then highlights the whole lot quite quickly. Then either delete... or copy as needed. (using the right click options).
Sorry, if this is basic stuff to some, but appreciate not everyone is conversant with Computers as others.
Ian.