Shapekeys connection to control

General Forums Blender and CG Discussions
1

HI!Im new to blender and i need help.

Here is a scenario where I have two shapekeys A(Mouth pull upwards) and B(Mouth Pull Downwards) .

Now my doubt is how do i connect the two blendshapes to custom attribute(BS_Ctrl) -1 to 1.

When -1 shapekey B has to trigger.
1 shapekey A has to trigger.

Thanks in advance.