What is the method for selecting multiple lines of text?

To select multiple lines of text, click and drag your mouse cursor over the desired lines while holding down the left mouse button. Alternatively, you can click at the beginning of the text, hold the Shift key, and then click at the end of the text you want to select. On a keyboard, you can also use the Shift key along with the arrow keys to extend your selection line by line. In some applications, Ctrl (or Command on Mac) can be used to select non-contiguous lines by clicking on each line while holding the key.