How to set working directory to build directory? Follow

I am using AppCode (for an XCode project). When I open the Project Settings/Build Settings tab, I can see that the "Build Locations/Build Products Path" is set to some internal folder: /Users/ypujante/Library/Caches/AppCode2017.3/DerivedData/MyCocoPlugin-afwmtxaeabjuyeheukrixhapqlxn/Build/Products/Debug

When I create a Configuration to run my code, I want to set the "Working directory" to that folder...  I obviously can copy/paste that value, but is there a $XXX$ variable that would give me this path?

And in general, is it possible to see all the $XXX$ variables that are available within the editor?

Thanks

Yan