Test-specific (Include) Paths?

[Kisvakond]

Hi,

I'm a newcomer to ceedling and I mainly try to use for unit testing.
I have some modules in my project.yml where I need to override or extend some common global include search paths.
I have tried this:

:paths:
  :test:
    - +:test/**
  :source:
    - <sources>
  :support:
    - test/support/**
  :include:
    - <common/search_paths>

:groups:
  :test_module1:
    :test_files:
      - test/test_module1.c

:modules:
...
  :test_module1:
    :paths:
      :include:
        - <test_module1/specifc/search_path>
...

However, the :include: section of :test_module1: will not override nor extend the global :include: section of the global :paths: . :(
I also can't add :test_moduleX: sections to the :include: section of the global :paths:.
I tried to having no global :path: at all and give everything in the module's :path: but then ceedling will not find any paths.

What's the proper way to get ceedling to use custom paths for test modules?

Thanks in advance for any suggestions!