Default add eap sim

hi evryone
i have litle question
somone one maby can help me too add eap sim fonction on my nexus 5 pls??

i have try all what i can found on the web and nothing work for nexus 5
i have got this link meby its can help for start ^^
code.google.com/p/seek-for-android/wiki/EapSimAka

tanx for all