Hi everyone!
We have come to a project where the comments from the source Word file didn't need to be translated but kept in the target file and we learned that this cannot be done anymore (it seems it was a feature back in Studio 2017). We discovered a workaround to mark comments for translation and then lock the segments for them to remain unchanged when generating the target file but it may be really time consuming in projects with many comments or with large scope (you need to check the segments in the editor looking for the tag "COM" in the column on the right.