How to use To-Do list
The To-Do list can be opened by clicking on this icon on the right.
This is how it looks opened.
to add any To-do you can click on the Add a To-do
Or just take a task and drop it in the list.
This can be done with the open task as you can see above, or from task list too.
You can drag it by the "3-dot" icon on the left side of a particular task when hover a mouse cursor over it.