I learned that the ARM IK allows you to adjust the elbow strength, the stretchiness, and allows you to reverse bend left/right.  You want the ARM Ik and Dragger to be at the same level. First you have to click on the origin and tag it as the left shoulder. Select draggable handle and tag as left wrist. Add a new handle in the middle of the elbow. Those 3 are the most important parts when working with the arm if you want it to work properly the way you want it to.

To change the favor of a direction you have to favor the right side of the right arm an favor the left side of the left arm by relocating the handle towards the outer of the arm.

If you mark reverse bend left/right then it will immediately bend the elbow the way you asked for it to respond.

You can also set a shortcut to a key for example, if you click the number 3 this will reset the arm ik rule set. This way you can fix an elbow in a smooth way.