Fields shown in pages but not stored in tables.

Let me know if you can define a text field that does not belong to any table in the database, but you can fill with "Autofill" or through code on the page.

The main use of this text field would contain data related to another field of the database that contains data from "lookup."

In the image, but in the page display all data, only those with a red arrow are stored in table. Indicated by red arrows are only displayed at runtime.
Image
Otherwise we should create a text field associated with a "lookup" containing multiple values using the "concat". It's very ugly.

Or create the database columns that contained the related data and fill them with "Autofill.". Not efficient.