Tip to Share
I just learned of this now.
If you want to highlight all of something to copy, etc.
Place your cursor close to the left of where you want to begin and click once (nothing happens).
Then go down to the right of the end of it, hold down the Shift key and click once. This will highlight all from where you started.
Be careful and check to see that above the start point didn't turn blue. That happened to me a couple of times thinking I wasn't close enough to my first point??
Hope it works for you and you find it useful.