Circle Focus mode and Project Focus mode are identical: there is therefore only one chapter for both. 

Circle and Project Focus modes help you:

• show all items (skills, roles, domains, links) that are attributed to this specific circle or project,

• attribute new items to this circle or project,

• delete items that have been attributed to this circle or project prior,

• visualize which people are in a specific circle or project and why they are (as a result of the attributes items: functions, roles, skills...)

Watch this video about the Circle / Project Focus mode:

Read more about it in this knowledge base article.