It would be helpful if QuickBooks allowed users to create custom encoded notes for estimates and invoices. Businesses could use this feature for internal references, inventory labels, training exercises, or educational demonstrations without affecting customer-facing documents.

For example, teams learning different communication methods can experiment with simple encoded text such as Morse Code for internal workflows and documentation.

A free Morse Code Translator can be useful for creating and decoding these practice messages:
https://morsezone.com/morse-code-practice/

This would be an optional feature and could benefit educators, trainers, and businesses that use encoded identifiers for learning or internal organization.