T540p Keyboard Backlight and fn-Buttons

Good evening,
I've got a brand new T540p since 2 days. First, I installed Windows 8.1 from the Recovery Media and after the Windows and Lenovo Updates I installed all the Software I need.
Yesterday I noticed, that I have to push Alt+Fn+F4 to close a Window. Or I have to push Fn+F3 for a Searchwindow.
Can anyone tell me, if it's possible, to change the Function of the F-Buttons?
And is it possible, to turn on the Keyboard Backlight all the time and not for a few Minutes while I'm typing?
Kind Regards
Manuel
Solved!
Go to Solution.

You can change the FN-key functions by pressing FN + Esc (activates FNLock).

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T540p Keyboard Backlight and fn-Buttons

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