Cloning Items within a Project allow you to "duplicate" multiple Items at a time. This is different than the Clone feature within the Catalog that allows you to create a new Item based off an existing item. You can quickly clone all or some of the Items in a Location and/or System to another Location/System.
Select the items you wish to clone and then click the Clone button on the ribbon of the Home tab in the Project Editor:
The Clone Items for will open:
Here you can enter the additional quantity of the item(s) that you want to add to the Project if you are cloning all of the items the same amount of times.
Keep cloned items in same location
Default = Checked. This option will assign the cloned Items to the same Location that the Item being cloned is assigned. If you uncheck this, you can clone to multiple Locations at a time.
Unchecking this option also opens up another option for quantity allowing you to choose a specific quantity for each Location:
Keep cloned items in same system
Default = Checked. This option will assign the cloned Items to the same System that the Item being cloned is assigned. If you uncheck this, all Items will be assigned to the new System that you select.
Clone as parent items (if parent items are not part of the selection)
If you select an Accessory, an Alternate, or an Item within a Package, the Item will be cloned as a parent item, i.e. a "stand alone" item.
Clone within existing package or parent item
If you select an Accessory, an Alternate, or an Item within a Package, the item will be cloned will remain associated with the existing Package or parent item.
Clone complete package or parent item
If you select an Accessory, an Alternate, or an Item within a Package, this option will clone the entire Package or parent item with all other Accessories or Alternates.
You can also clone via the Add section of the Drop Zone within a Project. Select the Location(s) and System in the Drop Zone. Then select the Items you want to Clone and drag them to the Add section of the Drop Zone: