It would be helpful if one could choose whether to edit parts of a sentence as is the case now or a sentence or a whole paragraph At present it is not possible to change the order of sentences or parts of it As different languages often differ in the usual syntax this is often necessary or at least helpful and leads to more elegant results

Could you correct the punctuation please?
It would be helpful if one could choose whether to edit parts of a sentence (as is the case now), or a sentence, or a whole paragraph. At present, it is not possible to change the order of sentences or parts of it. As different languages often differ in the usual syntax, this is often necessary, or at least helpful, and leads to more elegant results.