> For the complete documentation index, see [llms.txt](https://helpcenter.channable.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://helpcenter.channable.com/manage-improve-product-data/rules-bulk-edit-and-enrich/rules-in-channable/create-master-rule-groups/add-master-rule-groups.md).
# Add master rule groups
Master rule groups can be used to install general rules for multiple exports. By using master rule groups, you only have to create certain rules once. The master rule groups are applied to your source feed before it is manipulated in the Categories- and Rules steps of your individual feeds/APIs. You can use master rule groups, for example, to filter certain items from your feed or to set standard values.
### Add master rule groups to your exports
Master rule groups can be added to your exports under the Settings tab of your export. Here you can state which group of master rules you would like to use; you can of course also choose not to use master rule groups for certain exports.
In the API and Feeds overview the master rule groups will be shown per export.
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