output ports on Weld block?

In simmechanics second generation, I want to sense internal forces at a weld joint, as demonstrated here (<http://www.mathworks.com/help/physmod/sm/ug/sense-rigid-body-constraint-forces.html>) and on page 4-87 of the user's guide. But I can't find a way to add an output port to the Weld block, and the block's help page says it does not support actuation or sensing. Am I missing something?

Answer 1

[Nicolas Schmit]

The Weld Joint block now supports sensing.

Sense Constraint Forces