This option you can find in the installation directory (help documentation) of the software and you can use it for the application while editing your config.pro file.
Category | Description | Values | Default value |
Assembly | Sets what type of children packaged components can have. ALL - Features and components can be a children of packaged component. FEAT - Only features can be children of packaged components. NONE - Packaged components cannot have children. | all, feat, none | all |