Hi, I rely on Unity Editor Scripting to automate adding and modifying constraints to my avatar projects. Right now, when it comes to classic constraints, I am able to not only add and remove them, but replace their internal structs/modify their Sources, Source Weights, and Constraint Weights. This is vital for setting up my avatars without getting REALLY heavy on parameters/saving necessary constraint settings entirely in animations.
Please fully expose the internal workings of the new constraints to Unity Editor Scripting! Editor Scripting is an important aspect of achieving classic constraint parity.