How to get relative path to children in project root for configuration Follow

Hello,

Trying to configure Coffee Script to compile Js in a specific folder with specific folder structure similar, for example

a/b/c/app/x/y/z/file.coffee to be compiled as a/b/c/.temp/app/x/y/z/file.coffee, noting that x,y,z folders are not created by default, and a is the root project folder.

I followed this 

https://www.jetbrains.com/help/idea/coffeescript.html

and I have this in the Arguments

```

--output $ProjectFileDir$/my_project/.tmp/$FileDirRelativeToProjectRoot$/ --compile --map $FileName$

```

and this in the Output paths to refresh:

```

$ProjectFileDir$/my_project/.temp/$FileDirRelativeToProjectRoot$/$FileNameWithoutExtension$.js:$ProjectFileDir$/my_project/.temp/$FileDirRelativeToProjectRoot$/$FileNameWithoutExtension$.js.map

```

My problem is here:

$FileDirRelativeToProjectRoot$ => I need to get the relative file to a folder **within** the Project Root, not the root itself.

Noting out that I cannot use absolute path as I need the structure for the files