When key schedules are used to assign parameter values to rooms and areas, the values are retained when a key is removed.
In previous releases, when a key was removed from room and area elements, the values assigned to parameters from the key were reset to none.
In 2023, this limitation has been removed. When you remove a key from a room or area element, the values assigned by the key are retained. Once the key is removed, use the Properties palette to change values of the instance parameters.