How can I set Volume buttons to control ONLY "Music, video, games and other media"? topic

Hi, there's one thing I really hate about Smartphones, and it's the Volume button and it's function. Sometimes I accidentally press it and the phone goes from Mute to Sound, it changes the volume of the ringtone, etc.

So, If you go to Settings, Sound, Volumes, you see:
1. Music, video, games and other media
2. Ringtone
3. Notifications
4. System

I want that when I press the volume button, it only changes the volume of "Music, video, games and other media". I don't want it to change the mode of the phone, or the sound of the ringtone or whatever. :confused:

What can I do?

By the way, I have a Samsung Galaxy Core II with Android 4.4.2, though this is a generic question. THANKS! :)