This feature allows to copy the options and attributes of a bundle product.
If Allow Cloning check box is selected for a specific product option or sub-bundle, the system will show clone icon next to the option on the configuration page while configuring the product. When you click this icon, system will clone all associated attributes as is.
This is helpful when you want to replicate the same options and its attributes under a single sub-bundle product. A single icon click makes it easier for the sales representative to clone all of these at once.