Which method of scheduling new messages in Hootsuite is not used?

The method of scheduling new messages from the drop-down menu in a search stream is not utilized for scheduling purposes in Hootsuite. While search streams are primarily designed for monitoring social media conversations and engagement, they do not support the scheduling of new posts directly from this interface.

In contrast, the other options provide distinct functionalities that allow users to schedule messages efficiently. The calendar view allows for an organized visual approach to planning posts over time; the message composer is a dedicated space meant for crafting and scheduling new content; and the publisher section is specifically designed for managing and scheduling posts, making it a key part of the Hootsuite functionality for ensuring timely social media communication.