You can go to settings > euphoria controls > Power Menu Options > Show Screenshot.
Now whenever you need to take screenshot just long press the power button and click screenshot in the menu that appears. Done
S-Pen features that used to work in touchwiz roms (Alba too is touchwiz based) wont work in the AOSP/AOKP roms!!
|!!!xtremer!!!, *abhi boomed here*, antiochasylum's avatar is watching you, awesomesauce, batman is a lie, endorsed by chasmodo, epic rom is epic, face melting goodness, humpty dumpty was pushed, ics, lordmanhattan was here, stunner, tasty, toxicthunder swears by this|