Marking actions complete
When you’ve finished an action, just click its checkbox; its status changes to “completed”. If it was the project’s next action, and the action that follows it is available, that action becomes the next action.
Another way to mark something complete is to select the whole row and press Space. You can also right-click any number of selected items and choose “Complete” from the contextual menu, or click the Complete toolbar button.
If you mark a group complete, all of its child actions become complete too.
If you’re marking an action that you actually completed a while ago, you can adjust the completion date so that your records are accurate. Just select the item, open the inspector, and edit the Completed field.
Remember that regardless of the actions they contain, projects stay active until you decide that there are no more actions to be added and you mark the project complete.