Release 612 and C++ initializers??

[CptnCrunch]

Hi,

the release note:
'Added option to add initializers to output source code in C++ implementation file. A tagged value of "initializer" will result in EA appending ":" + the initializer value to the source'

Where is this option hidden? I have a attribute and set a init value. Then generate c++ source ... no initializer list in the c++ source.  
Thanks in advance.

Bye
Uwe