Insert rows

Is it possible to insert data from two different tables in a single row using the action “add a new row to another table using the values ​​in that row”?

Sure. The value expressions for the columns of the new row can make use of any data in the app.

But how do I specify that the data in table x is in a certain column and the data in table y is also in a certain column, so that he understands that when this data is inserted, it must be inserted in a single row?