Centralized Item and Product Management for Templates

It would be extremely helpful if items and products could maintain a linked relationship when copied between templates. Currently, when an item is created in one template and then copied into a new template, any future changes made to the original item are not reflected in the copied versions. As a result, each instance must be updated manually, which becomes very time-consuming when the same item exists across multiple templates.

Please consider implementing an option that allows copied items to remain linked to their source item, so that updates to the original can automatically propagate to all templates where the item is used. This would significantly reduce maintenance effort, improve consistency, and make managing large template libraries much more efficient.