Is it possible in structure text to implement a function within a Derived FB type section

[emlap]

Hi,

I'm on control expert classic. I implemented a section of a Derived FB Type in structure text.

There are some pieces of code that are repetitive in the code and I like to put them inside of a function

ex :

FUNCTION Foo : REAL

VAR INPUT

     BAR : REAL;

END_VAR



BEGIN 

     Foo := BAR ;

 END_FUNCTION



(*BEGING OF THE DFB*)



OUT_DFB_1 : = Foo(IN_DFB_1);

OUT_DFB_1 : = Foo(IN_DFB_2);

So is it possible to nest function inside of DFB sections? Can't find any documentation on this topic.

Thank you!