take 2 major scales let say B and Eb.Now after you have figured out both the scales in the SAME area of the neck lets say a position.Slowly play each scale for 'x' amount of time and tell your mind 'hey let me make the jump to the next scale'.So oscillate between these 2 scales a major third apart. Slow down and focus on the transitions between these scales,make the smoothest transitions between the two.The real shit is here in the transitions.So if you were playing a motif in Bb carry on playing the motif in Eb and focus on that one or two note transition between the two.Do this for hours and you will hear the changes in the scale family.Add a G major to the mix and play the three,switching orders smoothly as you go.You will learn the whole neck as this progresses.Its an introduction to playing changes by using simple fragments of the major scale,the mother of all scales.Try it, and I will post a video on how I do this soon.No bloody saying its too difficult in mails to me,try it :)