Within Teamwork Spaces, you can enable inline comments to be visible when viewing a page in read mode.
Note: Only users with manage or edit access to a space can enable this setting.
While viewing the relevant page, click the options button (three dots) in the top right and select Settings from the dropdown menu.
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In the page settings modal, toggle on the option for Inline comments in read mode and click Save.
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Once enabled, any user with access to the page will see a comments button in the top right of the page.
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Clicking the comments button will open a panel on the right side of the page displaying any existing inline comments.
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To add a new inline comment, highlight a piece of text in the page's content and click Add comment.
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For more information, see: Using Inline Comments