How to create deliver note from sales invoice

How to create deliver note from sales invoice. l want to fetch my delivery notes from sales invoice , how can l do it

After submitting the Sales Invoice, click on Create > Delivery Note .

If you want to create a DN from multiple invoices, first create a draft Delivery Note, then click on Fetch From > Sales Invoice and select the invoices.

https://docs.erpnext.com/docs/v13/user/manual/en/stock/delivery-note#2-how-to-create-a-delivery-note

this option can only get the delivery note from sales order the other option l have is to start picking the items again from the system so when l have over 20 items it will be a laborious job