Annotations were introduced by Google in Google Analytics back in 2010. It’s a feature that allows you to keep notes in the Google Analytics reporting interface (i.e., on a specific chart) so that you know the exact dates that important events occurred. For example, you can use an annotation before implementing a content audit to your website.
Already used by organizations world-wide a Project Management Tool!
Woffice comes with several built-in demos that you can install in one single click. You can test the available demos here and feel free to challenge any presented feature.