Configure Codeception in IntelliJ Ultimate

I'm trying to create a Runtime Configuration for the Codeception framework for PHP, used in my IntelliJ Ultimate IDE. 

• In the search Engines, there's this page ‘Codeception | IntelliJ IDEA Documentation - JetBrains’ proposed: https://www.jetbrains.com.cn/en-us/help/idea/run-debug-configuration-codeception.html, resulting in a 404
• Then there's this page https://www.jetbrains.com/help/idea/testing-frameworks.html#python-plugin, telling you that the Codeception framework should be available in your IDE if the PHP plugin is installed and enabled. I have the PHP plugin (most recent version) installed + enabled, but cannot add a runtime configuration for codeception. Whenever trying to do so via Settings > Languages & Frameworks > PHP > Test Frameworks > “+”, it simply adds a new runtime configuration for PHPUnit (which works fine btw).
• Which is when I came across this plugin here developed by you: https://plugins.jetbrains.com/plugin/9515-codeception-framework 
• When installing that, I can now successfully select a Codeception runtime configuration when creating a new one under Settings > Languages & Frameworks > PHP > Test Frameworks > “+”, then indicating the path to codeceptions' binary, which is then also properly recognized. 
• The problem is then, if I run any file with the according configuration, I get an error, because the extension for some reason looks for the autoload.php file within the folder of the codeception binary ("Could not find vendor/bin/autoload.php"), as the autoload.php file is obviously not there.

How can I install, configure & use a proper Codeception runtime configuration in IntelliJ ultimate?