You can do all of the following actions in the Composer, except:

The Composer in Hootsuite is designed for creating, scheduling, and publishing content. It allows you to schedule messages, shorten links using Owly, monitor character counts for different social networks, and select the social profiles for publication. Searching for mentions of your company name, or any other social listening activity, is performed in the Streams area of Hootsuite, not the Composer. Streams are where you monitor social media activity, engage with your audience, and track keywords or mentions.