We recommend reading Classification and Numbering before moving forward.
How to set classification on Items
Display Items in the System Module
Select the “Item” Tab to display option from the “Item module” in the “Systems module”
Click on the Item symbol in the panel to displayed the Item List
Click on the Item Groups in the Navigation pane to displayed the Item groups.
Set classification:
To set an Classification to an Item:
Select an Item
Go to the Classification in the property pane
Click on «•••» all the possible classifications will be displayed.
Set the Classification.