code: public final static void changeConnection(final int position, final ConnectionNotation notation,
  			final HELM2Notation helm2notation) {
  		helm2notation.getListOfConnections().set(position, notation);
  	}
docs: method to change a connection at the position of the HELM2Notation
  
  @param position
  position of the changed Connection
  @param notation
  to be changed ConnectionNotation
  @param helm2notation
  input HELM2Notation