<p>If you’re trying to change the times of one of your classes for pass 2 you’d have to drop your current one before you can even attempt to add the new class time. But what if you then find out the new time is full/waitlisted and then can’t re-add your old class?</p>
<p>check the latest open course listing before attempting such a move?</p>
<p>It is risky... that's why you should just sign up for the times you want the first time around.</p>
<p>D's school has a "Swap" option after "Add" and "Drop". It also has a "Show open classes only" option. Can you look and see before hand how many spots are available?</p>
<p>I don't see a swapping option.</p>