Rename a field
Goal: replace telefono with celular, and have the database keep what it already had.
1. Change the name​
In Estructura, click the name telefono, replace it with celular, and press Enter.

2. Confirm​
Click Confirmar, then Confirmar · 1. The notice « Base al dÃa » appears.
Result​
NEXOS renamed the column in the database (RENAME COLUMN). It did not delete it to create another one. The original path verified this with a row already present: after the rename, the value was still in the celular column.
Next step: remove a field.