If you're working with others on the same document, it's helpful to add suggestions and observations within comment boxes. So to do that, what we want to do, select where we want our comment to appear, and then we can use the shortcuts Alt + N + L for comments. There we go. Or you can click on the mouse obviously. And we might want to write something like this needs to be translated, or this placeholder text needs changing. There we go. So that's our comment. And I could send this off to one of my colleagues, and they would read this and they could hit reply. They could say, good idea, or something like that. So you get the picture now. That we could have a little conversation regarding a certain element of our document within one of these comment boxes. And once we're happy with everything, all we need to do is click Resolve. So we know that that comment is no longer required. Now the great thing about this is that we could probably have lots and lots of comments within the same document. So rather than having to go around removing text boxes, or shapes, and things like this manually, what we can do is go to the Review tab, okay. So click on the Review tab. And we can actually, we have the option to delete all the comments in the document once we've dealt with them, okay. That's if you want to do that. The other thing you can do is you can just leave them there. So instead of showing the comments, you could click on the Show Comments button and that will remove them. You're just left with this little kind of box here on the right-hand side where you can click on it to see them again, okay. Now, that's great if you want to leave it there. But you, if you're printing it out or sending it to someone, you probably don't want that C comment element to remain, okay? So it's something you want to print out. In the tracking here where it says simple markup, what we can do is change simple markup to no markup. And that means that the comments have now been hidden, okay. So if we're printing it out, we'll print it out without any comments there, but we retain the comments for our own benefit should we need to review them later on, okay? So all those options are available to us, we can delete them completely using the delete function. Delete all comments and documents, or we can simply hide them if we want to print it out and we'll keep the comments there for later use.