In the Analytics Suite 2, you can declare up to 300 pages as objectives. By default, that number is initially set to 20. However, you can ask for more to be unlocked gradually; 40, 150 and finally 300. This is done for free upon contacting the Support Centre.
The upper limit of 300 cannot in any case be surpassed. If you reach it, we recommend deleting pages that no longer generate traffic to free up slots for newer objectives.