Jazz-oriented independent coordination is basically the ability to play any rhythmic idea with your left hand and/or right foot, without ever breaking the time flow being played by the right hand on the ride cymbal.
Below are some exercises designed to help you improve your ability in this area. Remember to start with a slow enough tempo to enable you to play the 64th notes. However, don’t baby yourself. With enough practice, you’ll be amazed at the tempo at which these exercises can be played.