Is there any way to select the n rows preceding (or following) the selected ones?

[aborruso]

Hi,
is there a ready-made command to do this? Can I do it through some python expression based on some numeric index?

Thank you

[midichef]

There's no ready-made command, but you can do it with a few lines in your .visidatarc:

@Sheet.api
def select_before_after(sheet, n_before, n_after):
    sheet.select(list(itertools.chain(*(winrows for row, winrows in sheet.window(int(n_before), int(n_after)) if sheet.isSelected(row)))))
Sheet.addCommand('', 'select-before-n', 'select_before_after(input("select rows before selected: ", value=1), 0)', 'select additional N rows before/after each selected row')
Sheet.addCommand('', 'select-after-n', 'select_before_after(0, input("select rows after selected: ", value=1))', 'select additional N rows before/after each selected row')

@saulpw @anjakefala should this be a feature?

[aborruso]

It works great, thank you @midichef

And in my opinion, it should be a feature.