If you click the right facing chevron on the dimension you can expose the values from the last 6 or 18 months. Selecting the first value you can scroll to the bottom, select shift, and drag all of the values under the metric.
Having said that I wouldn't recommend doing that if you have have more than 8+ values as it becomes difficult to interpret. At that point you might be better transposing the table to say have the dates in the columns.