How to go about replacing a lot of lines after proofreading

[WatchDaToast]

Long story short, all my game`s dialogue was finished and I sent it to someone for proofreading.
I let AGS number all the ingame lines and exported a huge text file (the one that is meant to be used by
voice actors) with all the lines, sorted by characters that were saying them. I sent that to the one person doing
the proofreading, thinking this would be the most straight-forward way for him to do the proofreading.

Now, as I slowly see the corrected lines stack up, I notice that replacing the original lines inside the
scripts might turn into much more of a nightmare than I was expecting.

I wonder, is there a somewhat efficient way to replace the corrected lines, without having to
look up each script they appear in and manually replacing them there?
I thought about creating a translation text file and adding the corrected lines as "translated" versions
beneath the original ones. I could accept that amount of work, even if it may take me a week to do.
But in the end, I would need a way to replace the original lines with the "translated" or to be exact, proofread ones in AGS.
I remember hearing about such a feature in AGS, but I am not sure.

Any help is greatly appreciated here. I think I should have given this a bit more thought before I sended out
that text file... 

[Cassiebsg]

yes, you can generate a translataion file, add the new lines to it in the right place, if you like you can then test to see if the translations are showing in game where you want them, and then as a last step, when you sure you want to replace them, you right click the translation and choose "make this the default language" (or something along these lines).
This will replace all the lines in the scripts with the new lines.

Just remeber to make a backup, just in case something goes wrong and you need to revert it. 

[WatchDaToast]

Ooh, what a relief. Did not think it would turn out to be that easy. Thanks a lot!
So, when I leave a lot of "translated" lines empty because the original line did not have any mistakes, does AGS automatically leave these in the new "default" language?

[Cassiebsg]

Yes, it'll only change those where there's a new line.