There are two arrows, but it changes places in both places - only in the language of the original: both here and there the same text, not the traslation, but the only original. It does not change the already translated text, so that not need in the one language and and ther, and there, but in two, and the first - translated, to correct incorrectly translated words in the translations. And there is no to"insert", which must be correct translation. I know very good 2: russian and Ukrainian