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Streams are available to all license types on all Wrike accounts.
You can add comments to tasks, folders, and projects from all of the available streams in Wrike.
From the Global Stream or Stream view, you can add comments to tasks, folders, and projects.
Select Stream view of a space, folder, or project, or open the Global Stream from your Home page.
Click the Add a comment... field of the update related to the task, folder, or project you want to add a comment to.
Type your comment.
Click Send or press Shift+Enter on your keyboard to post your comment.
From the Activity Stream of a task, folder, or project:
Click the Add a comment... field at the bottom of the stream.
Type your comment.
Click Send or press Shift+Enter on your keyboard to post your comment.