1. Navigate to your Avatar in the bottom left-hand corner of the page and select Settings.
2. Navigate to the Tags tab and click +Tag.
3. Select a category for the Tag from one of the following: Brokerage, Fund, Market, Portfolio, Submarket, Project.
4. Give your tag a name and click Add.
5. Once you've added to necessary tags, you can assign them to properties by editing the property information. See: How to Edit Property Information