Sample script showing how to update public variables in the UMA_DP3.Jiggles namespace:

using UnityEngine;
using UMA.DP3.Jiggles;

public class JiggleTest : MonoBehaviour {

	private UMA_JiggleBreasts breastJiggle;

	void Start () {
		breastJiggle = GetComponent<UMA_JiggleBreasts>();
	}
	
	void Update () {
		if (Input.GetKeyDown(KeyCode.Space)) {
			breastJiggle._breastStiffness = 1;
			// For breast and buttocks where more than one bone is managed you need to call UpdateJiggleBone()
			// for each bone in the list _jigglers after chaging parameters in code for belly you will not.
			for (int i = 0; i < breastJiggle._jigglers.Count; i++) {
				breastJiggle.UpdateJiggleBone(breastJiggle._jigglers[i]);
			}
		}
	}
}