"Link to a related item" available only when editing existing item, not when creating a new item.

Hi there @1Passworder1

This is by design. The item you're creating is only a draft until it's saved and so doesn't have a UUID (universally unique identifier), which is what 1Password uses to refer to your items internally. When you save the item, it then has an identifier, and so the link can be made.

It's like trying to make a shortcut to a file on your computer that you haven't yet saved. If you started writing a document in your word processor but hadn't saved it yet, the file wouldn't be on disk and you wouldn't be able to make a shortcut to it.

Hope that explains it, but let me know if you have any questions. :)

— Grey