[Tale]

Well, that shouldn't be too hard... Just add this slider:

slider5:0<0,1,1{Never,At Least Once}>Out Of Phase

And then a few lines below replace this line:

phase > 0 ? slider3=1:slider3=0;

With this line:

phase > 0 ? slider3=1:(slider3=0;slider5=1);

And to be consistent you should probably also change:

sliderchange(1+2+4);

To:

sliderchange(1+2+4+16);

But for reasons unknown sliderchange() seems no longer needed at all.