From "Chat" 

  • Select "Chat" tab in a binder
  • Click on the "+" icon next to send message input box
  • Choose the new "To-Do" option
  • Type the To-Do title in the "Add a To-Do item..." input box and click "CREATE" 

From "To-Do"

  • Select "To-Do" tab in a binder
  • Type the To-Do title in the "Add a To-Do item..." input box at the bottom of the chat screen and press "Enter"

From "File/Pages"

  • Click the three-dot icon from one of the following section 
    • the bottom bar of the file (chat tab)
    • the top right of the page view (file preview screen)
    • next to the corresponding file (file list or thumbnail view)
  • Click on "Create To-Do"
  • Type the To-Do title in the "Add a To-Do item..." input box and click "CREATE"