Within the task drawer, assignees are able to add attachments and link related content that pertains to the task.
To Add Attachments to a Task
Open the task and scroll down to the 'Attachments' bar below the sub tasks.
Once the Attachment bar is open, you can add an attachment by selecting the '+' icon. This will open up the gallery view.
From the gallery you are able to see recently uploaded media, search the media within your brand's gallery as well as upload your own media for the content you're creating.
You can remove attachments by selecting the 'X' on the top right corner of the uploaded attachment.
Linking Task to Related Content
Open the task and scroll down to the 'Related Content' bar below Attachments.
Once open you can see content that is similar to the content of the task, whether it be from the same campaign or series.