mistake in ds-156

[roopalis]

hi everybody,
i made a mistake in 40th item in ds-156 for my auntyt ,that instead of typing full name of my husband i just typed "pa'" and downloaded the form can we write it with pen now. in another ds-156 for my uncle i wrote my husband full name

[si_ako]

fill up and save online forms several times

same here. i had a mistake in filling up the form, i only recognized when i already save the file in pdf format, what i did was i filled up another one in the online form and saved again. is it okay to fill up the online form twice or thrice? based from their website, the filled up form is not being forward to immigration, so i think trying to fill up the form several times won't be a loss. please help. thanks