The project seems dead, but i still use it to store my datas so i should as well note some advice.

The filters and sorting in their basic form were altering the datas so it bothered me.
But i learned we can use a View (see the filter menu in the toolbar) to apply the filters a,d sorters without altering the datas so i am now using it.

And selecting full columns solves the problem of extending the filtered area.