Lenovo 11e E/Edge :: Keeping Fn Key On

the way the F keys have been switched on my Edge 14", today I came across some time to fiddle around with it. I googled what I needed to do...and came across this question on yahoo, which is exact what I need. I bought Lenovo Thinkpad Edge several months ago, and I really like it so far. But I use MS Excel a lot and I always use shortcut keys which involve F1~F12. On my thinkpad, I always have to hit "Fn" and "F1~F12" keys simultaneously, and it is a little annoying since I've been used to using F1~F12 keys without hitting "Fn". So I went to BIOS keyboard setting, and enabled the Function key lock. It became a little bit better, because now I don't have to hit "Fn" and F1~F12 simultaneously, but I could press "Fn" AND THEN, F1~F12. But what I really want is the "Fn" key always on without pressing it. On the BIOS screen, it says hitting "fn" key twice keeps "Fn" key always on, but whenever I hit it twice and hit F1~F12, it doesn't function like F1~F12 key, but it just controlls the sound volume or display light. Is there any way to keep "Fn" key always on without pressing it everytime I want to use F1~F12 keys?"
 
In short, in the BIOS page, once "enabled", you are able to double tap the Fn key and have it stay on without you pressing it each time; however, it doesn't appear to work that way and turns off everytime you use a F key.