You can do this using the “Data grid 2” widget. It would look like:
The Comprobante is an enummeration:
The visibility options of the icons:
The Validar is now a Radio button. Should you desire two checkboxes, just make 2 booleans (and some onchange logic to toggle the other).
I you get stuck, just ask.
Go make it.
use the dataGrid2 instead. That widget allows you to add widgets inside the grid rows.
another option is to use a listview, and model it like a grid using a layout grid