Changes in Derived Item Lists
The quantity and data of items listed as derived can be edited, added, or removed. Any changes will be highlighted in orange to indicate deviations from the template. It is important to keep in mind the following rules when working with derived item lists:
Adding an item to the template will add it to all derived lists.
Removing an item from the template will remove it from all item lists, including any derived lists. For instance, if you delete the two chairs in the template, the chairs in the corresponding room will also be deleted.
Once an item is derived, it will no longer be updated from the template. For example, if you modify the quantity of an item in the room, changing the priority on the template will not affect the item's priority.
Derived Item Lists can be derived from an item list with a Unique or Templated status.

Derived Item Lists
In this example, the Chair quantity was changed, and the DVD player was added, not from the Template.