Linked units on the calendar
Some inventory is one space sold two ways: a big apartment that also sells as two smaller halves, a villa whose annex has its own listing. Linked units let you sell every shape without ever double-booking the shared walls - the calendar enforces it for you.
The rule
Section titled “The rule”Book the parent, and its children are blocked for those nights. Book a child, and the parent is blocked (and, where the setup says the children exclude each other, its siblings too). The guard runs in both directions and at the same depth as the oversell guard itself - it is not a visual convention, it is the availability rule.
What you see on the grid
Section titled “What you see on the grid”When a linked unit’s booking blocks a night here, the night is painted with a rose hatch across the row - hover it and it says exactly why: “Blocked, a linked unit (parent/child) is booked on these nights.” The hatched span mirrors the geometry of the booking bar that caused it on the neighboring row, so the two read as one fact.
A hatched night is different from a block you drew: there is nothing to edit or remove on this row. It clears the moment the linked booking moves or ends.
Selections respect the links
Section titled “Selections respect the links”Dragging a multi-unit selection that includes both a parent and its own child is refused with a plain message - they share the same physical space, so booking both would double-book one space. Pick independent units, or book the parent alone.