I have an Inspiron 15 5000 series laptop that I use in a low-light environment. I would like to set the keyboard backlighting to be always on, so I don't have to press a key or tap the touchpad to temporarily enable the backlighting. I have looked in the BIOS, but I do not see such a setting. Is there a way to set up the laptop so that backlighting is always on? Thanks in advance for your responses.