Recomplie when other FMX & VCL already installed

Hello,
I want to recompile TMSFMXPackagexxx.dproj after commenting the line
 {$IFDEF USECHROMIUM}
inside TSDEFS.inc.

When compiling I got errors realted to bad definition of some DEFINES.
The Delphi IDE "Open File at Cursor" opens the TMSDEFS.INC located in the directory of "TMS VCL Async" probably because it is the first in the path.
When I look for TMSDEFS.INC on my components path I found 27 files named TSMDEFS.INC.

So how I can force the compiler to look at the right INC file inside the IDE without using msbuild ?

Kind regards,