A similar approach can be used to identify Ceilings, Soffits, Roofs and Floors.
Using the Element ID Manager ensure a unique prefix is used for each.
Note: Alternatively, this can be manually achieved by entering in the desired ID into the textbox in the toolbar under the header “ID & Properties”.
Remembering to add the correct suffix to the Floors and Ceilings associated with Unconditioned Typologies. This is often a faster method when there are fewer elements to assign IDs to.