Duplicate / Copy - Paste a particular Section (with all subtasks) within a particular project

Within a particular project, we produce slightly different variants for a similar product.

For Example,
Project A
Item 1
Item 2
Item 3
Item 4

Now, Some projects may have just 1 item, some projects may have 10 items. Procurement of Raw material will be a common process for the entire Project A, therefore there will be only 1 Section for Procurement. But Manufacturing of Each Item 1, 2,3,4 etc. will be a different section, and tasks for each item would be more or less the same.

Therefore, it would be nice, if a particular Section can be copy-pasted or duplicated within the same project, so that 1 Single template can be created for a product category, and same can be used irrespective of the difference in the quantity of variants in each project.