Vital CRM
How to add extended attributes for order items?

Go to [Settings > Extended Attributes > Items]. You can add, edit, or delete extended attributes here.
*Extended Attributes can be added unlimitedly.
*Please delete the unused extension fields directly, otherwise it will always be displayed on the new order page.
Extended Attributes - User Guide FAQ

[Settings > Extended Attributes > Items]
https://faq.vitalyun.com/EN/CRM#4177