Add fully recursive and parameterized #macro directive. Define like this...
#macro MyMacro (P1,P2,P3) ... #end
Invoke like this...
MyMacro (5,x*5,MyTexture)
Note no '#' sign preceeds invocation. Macros can be invoked almost anywhere. Parameters must be identifiers or any item that can be declared, MyMacro(pigment{Green},MyObject) for example.
Added #local IDENTIFIER= STATEMENT as alternative to #declare to create temporary local identifier in macros or include files.