private void toggleGVM() {
		HashMap<Character, String> forces = new HashMap<Character, String>();
		forces.put(G, GRAV);
		forces.put(V, VISC);
		forces.put(M, COM);

		for (char c : forces.keySet()) {
			if (mySpringies.getKey(c)) {
				mySpringies.clearKey(c);
				myEnvForces.toggle(forces.get(c));
			}
		}
	}