You can "Feature" a posted message, file, event, task, or link on a workspace so that it always shows up at the top of your Latest Activity. This allows you to push important information to the top no matter what people post afterward.
- Post your message, file, etc. like you normally. do.
- Click on the "Actions" menu that shows up to the right of the date/time it was posted.
- Choose "Feature on this page."
- If you want to "Unfeature" the post, click on "Actions" again and then choose "Unfeature on this page."