you can ad comments. In the TeamDrive you must make a right mouse click on the file, the select in the menue "comment". TeamDrive will open an additional window. Here you can enter your commands. You can see the command below every version of the file.
Right, I saw it and I used it, but my request was how modify those comments... I tried to edit comments from a previous version but I can not do it Even my from the current version, i just can add comments but never again change it