To move the IK handle

1. Select the IK handle.
2. Select the Move Tool (hotkey: w) from the Tool Box.

   The translate manipulators appear.

3. In the current view, drag the IK handle to move it as desired.

   This moves the joint chain controlled by the current IK handle.

To rotate the IK handle

1. Select the IK handle.
2. Select the Rotate Tool (hotkey: e) from the Tool Box.

   The rotation manipulators appear.

3. In the current view, press drag the IK handle to rotate it as desired.

   This rotates the joint chain controlled by the current IK handle.