Deleting a meeting linked to other meetings.

Hello

I hope you can help

I have set up a meeting. I have then duplicated that meeting (using it as a template) this has copied all of the layouts and content through. Brilliant. I have worked on the copy and the original is now not needed. I have delete the original which when i did i recieved this warning

This item has other items linked to it. If you delete this item, then the links that point to this item will also be broken. Please verify that this is what you want to do before proceeding.

I thought fine i dont need it to link to the original so deleted. I have then gone back into my new meeting and the layout have gone.

I dont understand the benefits of this linked process. if i update the original nothing changes in my new version but if i delete the original it delete the layout in my new version. Any guidance on the purpose of the linking and benefits or a way to break the link without it effecting the duplicated meeting room would be fantastic.

thank you in advance for any guidance you can provide