Reaction moment sensor

Good afternoon,

I'm trying to do a design study using a static bending simulation. I have two elements, one hyperelastic that I'm deforming and one rigid plate that I use to impose a rotation while still being able to use an Ogden model for the first part. From this, I want the resulting moment at a point (place a the tip of the pink needle). I use the free-body workaround to get this reaction moment when I am in the simulation app but I can't find a way to make it into a sensor to use in design study.

Is there another workaround for this ?