The zope:include directive
This directive allows you to include another ZCML file in the configuration. This enables you to write configuration files in each package and then link them together.
The name of a configuration file to be included, relative to the directive containing the including configuration file.
The names of multiple configuration files to be included, expressed as a file-name pattern, relative to the directive containing the including configuration file. The pattern can include:
The file names are included in sorted order, where sorting is without regard to case.
Include the named file (or configure.zcml) from the directory of this package.
* = required