Separate column in connected tables

Hi, I have two tables that are connected to each other. This means that if I enter something into a column, regardless of which table, it will automatically be entered into the other table. Is there a way that I can create a column in the second table that is not automatically entered in table 1? I know that the column in table 1 is then automatically made non visible, but is there a possibility that it does not appear in table 1 at all? Also not as invisible?

Briefly asked: Is it possible to create a column in a connected table that is completely not connected to the other table?

Hi

What you are describing does not sound like two connected tables, but rather one table with two views.

Technically you can only add a column to the base table, but whether that column is included in any view is optional, giving you what you are looking for