How to connect four blendshapes to a Box controller.

1)Make a controller and blendshapes with names: Happy, Sad, Angry and Surprise. 2)set the limits in X and Z from range -1 to 1. 3)select blendshapes from blendshape editor. 4) Open Expression editor. 5) select each blend shape on left in expression editor and paste these code under each (Happy,Sad,Angry,Surprise). ###################################################################### Happy = clamp(0,1,-ControlCurve.translateX+1)*clamp(0,1,ControlCurve.translateZ) Sad = clamp(0,1,ControlCurve.translateX+1)*clamp(0,1,ControlCurve.translateZ) Angry = clamp(0,1,clamp(0,1,-ControlCurve.translateX+1) * -ControlCurve.translateZ ) Surprise = clamp(0,1,clamp(0,1,ControlCurve.translateX+1) * -ControlCurve.translateZ )