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.
In the page settings modal, toggle on the option for Inline comments in read mode and click Save.
Once enabled, any user with access to the page will see a comments button in the top right of the page.
Clicking the comments button will open a panel on the right side of the page displaying any existing inline comments.
To add a new inline comment, highlight a piece of text in the page's content and click Add comment.
For more information, see: Using Inline Comments