You might have important posts and want to notice it to all participants in the project. In this case, "Pin" would be useful.
You can only pin your own posts, but project managers can pin all the posts in the project room.
- In the project room, you can see a 'Pin icon', next to the post title.
- Once you select it, you’ll be asked whether you want to pin it or not. Select OK to confirm it, and after that posts will be placed on top of the project.
you can save(Bookmark) your favorite posts. Click "Bookmark" on the bottom of the post, then it'll be saved on "Bookmarks" on the left menu. (In the Contents box)