Change an object's Level

Select the object in the viewport or Project tree. In its right panel, open Level and choose the intended existing Level. This example temporarily moves a Chair from Ground floor to First floor; it does not change the house structure. The available control and effect depend on the object family: a Wall's base, a Roof's datum and a Room's plan assignment are different uses of a Level.

The complete Willow House editor before reassignment, with the selected Chair on Ground floor in both the right panel and active Level selector. — Before: the Chair belongs to Ground floor.

View the full-size before screenshot.

The complete Willow House editor after the Chair has been assigned to First floor and First floor selected as the active working Level. — After: the same Chair belongs to First floor; the viewport is also set to First floor so it can be inspected.

View the full-size after screenshot.

Choose the object's new active Level before checking Top or full 3D: higher Levels are hidden at the old active Level. Top's limited underlay comes only from the nearest lower Level; it is not a complete view of lower objects. Then inspect the resulting height in a side view or 3D. Review hosted openings and any upper constraint or offset before selecting Save. The Level selector above the viewport changes where you work; it does not reassign the currently selected object. What a Level controls explains these two settings.