I have imported a .mbox file.
In the “Inbox” I can see the “From” field, whereas in the “Sent” group I cannot activate the “To” and “Subject” fields, despite these being available as properties in Info → Properties
Am I missing something ?
Are these fields enabled in View > Customize Metadata…?
No, that solved the issue, thank you ! 
I believe I had also enabled the “From” field in the past using that specific function, but I had not remembered it, and neither a search in the forum nor in the app help had been helpful (in fact, the GPT assistant even ‘misled’ me by saying that the feature was not available in the app and suggesting that I ask DEVONtechnologies to implement it! 
).
Which prompt or question did you use?
I first asked how can I add the "To" property to emails in the database view ? and received this response:
As a follow-up I replied I see the "To" metadata in the info->properties of the emails but the field is not available for selection in the column headers and received the response I pasted above (here below the first part of the response)
