In excess of that, if you have leves not completed on you when the leves reset you can complete those and pick up a full set of new ones.
Whoa. Didn't know that. So if I have 8 uncompleted regional Leve's when the timer resets, I can technically have 16 regional quests?
So I had some quests left over from a couple of days ago, and I just went to go add more. When I tried, it made me trade them (incomplete/never started leve's) out for others. I had to choose one to trade, and the only other option I had was to "cancel all". Is there something I'm not doing?
You can only have 8 Regionals and 8 Local leves in your journal at the one time. If you have 8/8 uncompleted regional leves from a previous time and you want to get more, you can exchange them all for new ones, but they will be gone and you won't be able to do them. Otherwise you will have to complete them all then come back and exchange. If for example you had 3/8 leves that were uncompleted you could exchange the 5 you have done for more (as long as you take note from your journal which is which). However if you have a leve e.g. "Revenge of the Dodos" as uncompleted and you want tp pick it up again, the system will automatically overwrite the uncompleted one with the new one.
With Local leves they dissapear from your journal when they are completed and turned in. If for example you had 2 in your journal that you hadn't turned in you can pick up 6 more to fill your journal to 8 and then when you have handed some more in, return to the adventurers guild and pick up 2 more for your 8.