As already mentioned several times, much of what you desire is already possible.
As with anything, there is always room for improvement. I suggest you wait for
the code to 3.5 be released, then follow the convential route of implementing
your own unofficial version. The well implemented, popular parts could make it
into a future version.

--
light_source{0,1}#macro c(J,a)sphere{0,1pigment{rgb z}scale a translate J+O}
#end#macro B(R,V,O)c(0,4)intersection{c(V,R)difference{c(-z*4x+10)c(-z*4.1x+
10)c(0<7.5,45,5>)}}#end B(12,0z*25)B(8y*4<0,12,50>)          // Batronyx ^"^

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