Retriever allows your to organize rules into a "rule-set". You can create one in two steps,
1. Create a new folder
Click "Open a folder" from Retriever panel, then "Make New Folder".
2. Add rules and templates from the search bar
Search rules and templates you want from the search bar. For rules, you can add them directly with the + button on the right. For templates, you need to edit them first and click "Save" to save to your rule-set.