Hi,
I need to make some stacked COF with stacked view with descending order transparency as shown below within the same molecule 
image.png

from a stacked view
image.png
Please let me know how I can select each 2D layer and decrease the transparency while going down. Please help me to make some nice images.
Looking forward to hearing from you,
Many thanks,
Thiru
 
--
Thirumurugan Prakasam,
Research Scientist,
New York University Abu Dhabi,
Experimental Research Building
Building C1, Saadiyat Island
Abu Dhabi, UAE
Phone no: +971-561976358