Sidebar tool is an option in the Rich Text Editor that creates a sidebar and wraps around text. The side bar can include images and be aligned to the left or right.
Follow these steps:
Open an Article and hit the + icon in the body.
Select the Side Bar option in the options
Hit the + icon and feel free to embed, asset, block quote. Once an asset is added a hyper link icon will appear to add links or affiliate link options. Additionally users can just click inside the Side Bar to add text or caption.