You can pin, edit or archive goals from the Goals tab. When you hover over a goal, three icons appear. These allow you to to pin, edit and archive goals.
To pin a goal click the little pin icon, any pinned goals will also show up at the top of your time tab as a reminder.
To edit a goal, click on the spanner icon. This allows you to go in and change the goal to a target/budget, change the the hours, filters and frequency.
To archive a goal, click on the red X icon. The goal will no longer be active but you will still be able to see it in your archived goals.