Users can add the Products in the Templates dragging them in.
To add a Product, the Template must be in Edit mode on the Grid.
If the Template includes the creation of tables or more Products, it will be need to add both a main Product (Main Product) and the secondary Products (Products Set).
If there aren't secondary Products, users have to add only the Main Product.
The max number of Product Sets that can be added, depends on the Template structure and it's not necessary to add all of them.
Once a Product has been added in the Template, it's possible can replace it dragging another one inside or delete it.