I don't understand how to use morph for optional promotions. I have promoChoice=W/PH/PF/PQ/PS/VH/VF/VQ/VS and two pieces, P and V, with morph=*/5/6/7/8 and morph=*/1/2/3/4 but it won't work right. What I expect is that each piece would have one optional promotion on each of the 4 ranks before the last. Instead, they either get all the promotion options at the same time or none.
I don't understand how to use morph for optional promotions. I have
promoChoice=W/PH/PF/PQ/PS/VH/VF/VQ/VS
and two pieces, P and V, withmorph=*/5/6/7/8
andmorph=*/1/2/3/4
but it won't work right. What I expect is that each piece would have one optional promotion on each of the 4 ranks before the last. Instead, they either get all the promotion options at the same time or none.