The checking of segments for forbidden or possibly problematic words is a nice feature.
How about enabling comments in these lists, displayed in the Grid just like regular comments?
So the list for target words could contain:
your\tYour is possessive, meaning that something belongs to you or the person you are speaking to. you're\tYou’re is a combination of the words, you and are.
The checking is a feature that's useful for professional translators.
Comments in the target words list might be a feature for educational purposes primarily.
Comments in the source words list might be a feature both for educational purposes and professional translating; the client could create a list with explanations/definitions etc.
I really miss this feature. It makes it virtually impossible to use Cafetran for professional proofreading.
And by the way: how do you enter comments in the word list?