Default Volume Keys to Skip Tracks Not Working?

I am on the latest Alliance and I am trying to get the volume keys to switch tracks .. What I have tried 1)Searching 2)Installed the Xposed module that let you set this option and it didn't work 3) I tried using Wanam to set this under the sound settings rebooted and no luck.
Am I missing something because this function is something I use more than any other function. I hate having to turn the screen on to skip tracks . Or double clicking the inline mic to skip tracks which is my only other option .Any advice would be much appreciated . I did see other threads related to this but it wasn't device specific. Thankls in advanced