2009

Interface
Properties rollout
RB Collection button Displays the name of the Rigid Body Collection assigned
to the solver, if any. To assign a Rigid Body Collection to the solver, click this
button and then selecting a collection in any viewport.
Highlight Click this button to cause the constraints in the Constraints list to
momentarily display in the viewports as if selected.
Constraints Lists the names of the constraints currently in the solver.
Pick Lets you add a constraint to the solver. Click this button, then in the
viewport move the cursor over the constraint you would like to add to the
solver. If the object can be used as a constraint, the cursor changes from an
arrow to a cross and you can select the object to add it to the solver.
Constraints | 3947