Collections gather related memos under a shared 📝Primary Tag — a way to group memos under one label without working the grouping into each title. You create a collection by selecting a primary tag: tag the memos, then pin that tag as their primary (or give the tag an explainer memo, which MythOS selects automatically), and the tag becomes the collection's shared heading.
The primary tag's label appears to the right of the memo title across discovery surfaces — the @-mention picker, the command palette, and community rows — so a collection reads as a named group wherever its memos surface. Every memo in a collection is browsable together on its 📝Tag Pages.
Related
- 📝Tagging — how tags carry collection membership across a library