[PyMOL] Cartoon_transparency

[Criss H. <cri...@gm...>]

I am using PYMOL2.4.1 on windows.
I want to make two cartoon helices transparent in an object having 10
heleices. Before version 2.3, I would make a copy of the object, hide the
two transparent helices on the original object and show them on the copy
with transparency set to 0.5. After PYMOL2.3, cartoon-transparency is
supposed to work on the atom level, but when I try to apply cartoon
transparency to the two helices as a selection
(cartoon_transparency,0.5,sele), the helices change color but do not become
transparent. Am I doing something wrong?

-- 
Criss Hartzell