Adding fields to forms using Personalize this form can be based on guessing. Would like to see a unique identifier, so It is possible to know exactly which fields to add to a form.

Example - I want to add sales order line number to project item requirement lines.

In the field picker dialog, I see 2 fields named line number.

It is next to impossible to guess which of the fields to add to the form (one shows nothing and the second shows the number I want to see).