settings.OPR_SUPPORTED_REPORTS_BACKENDS = {
    'generate_<my_report_name>': {
        'backend': '<module_python_path>:<backend_class>',
        'max_results_per_page': <max_number_of_data_results_per_page>,
        'other_custom_report_setting': ...
    },
    'generate_<my_other_report_name>': {
        'backend': 'backend': '<module_python_path>:<backend_class>',
        'max_results_per_page': <max_number_of_data_results_per_page>,
        'other_custom_report_setting': ...
    }...
}