You can assign and delete Items from Item Lists for Rooms within the Rooms Module (Home->Rooms) as follows.
Select one or more Room(s)
Either:
a) Right Click menu:
Select “Item List”. Example “FE&E”
Select “Status”, “Copy” or “Delete”. Example “Create Unique”
b) Select
Select “Items” tab in the ribbon menu
Select “Status”, “Copy” or “Delete”. Example “Create Unique”
You can also connect a Room to a Template Room Data as well as the same Template Item Lists with a single operation by selecting "Apply template". Read more Apply Template to Rooms