Could try clicking the beginning of the line you want to start selecting then drag the scroll bar down with the mouse and then Shift - Left Click on the line to you want to stop the selection at.
You can also press Shift - Page Down to select big portions of text at a time. -- Mark H. <https://forum.pspad.com/read.php?2,77499,77500> PSPad freeware editor https://www.pspad.com
