how to modify preprocessor options in NIOS II?

[Altera_Forum]

I am new to Altera NIOS II. I need to add DALT_USE_LCD_16207 to preprocessor option to enable LCD controller while using reduced device for other components. But I could not find where for me to modify preprocessor option. Any help will be appreciated! 

 I am using NIOS II v9.1 sp2.  Thanks...

[Altera_Forum]

Did you ever figure this out, I am in a similar situation. 

 Thanks, John

[Altera_Forum]

how about  

Properties (of the Syslib or Project) C/C++ Build NIOS II Compiler Preprocessor Define Symbols

[Altera_Forum]

Thanks for the Response Karsten. Just to avoid confusion if someone else runs across this, in 9.1sp2 the definition can be added at: 

 Properties NIOS II BSP Properties Defined Symbols