Understanding View Modes
GTG has three different view modes to aid with productivity and managing your tasks: Open, Actionable, and Closed. The Open view mode displays all tasks not marked as done or dismissed. The Closed view mode displays all completed tasks or tasks that you dismissed.
The Actionable view mode shows tasks that you can complete right now and meet the following conditions:
The task must be "startable", meaning that the start date is today or has passed.
The task does not have any open subtasks, meaning that all of its prerequisites are met and you can complete the task itself.
You can further filter tasks by tag, in any view mode, by selecting a tag in the Sidebar.
You can use an option in the Edit tag window to hide tasks with certain tags from being displayed in the Actionable view mode. See the Edit Tag Properties section for more information.