Glossary:Hook node

hook node - a hook is a place that determines where new elements are added in the Contents (e.g. with Add new). A hook is a knowledge tree node to which new elements are added (as children). The hook node is either the same as the root node, is a child of the root node or is a descendant of the root node. Once the children limit of a hook is passed, a new hook is chosen. The newly chosen hook is always a descendant of the root of the current category. If SuperMemo runs out of branches that might become new hooks, it will restructure the category folder and start a new level of branches with new space for new hooks and new elements.