In Add Task/ Edit Task window just type the title in "Tags" field and click "Enter". You can add as many as you want but remember to click "Enter" when adding a new one.
Tags (or Contexts, because they work the same) are aligned on the very top so you can quickly find-and-click what you need and when you need it. With just one click you can easily group your tasks on the fly to view, decide, organize or rearrange with no hassle.
Filter tasks selecting multiple tags
But it gets even better. Because the Focusbar allows you to do multiple selection on your tags, you can combine subgroups of tasks just by clicking on two or three tags at the same time. Quick, clean and super handy for the everyday.