I'm not sure if this is what you mean, but I plan to make a second comic to my first one and I have already opened this comic - but I haven't uploaded anything yet. Since there are no episodes, there is no second comic in my list. =)
If you want to schedule episodes, I recommend not scheduling too many in advance, max. 1-2 =) I do not know, however, if the comic shows up when you schedule episodes. =)
Also, as far as I know, it is not possible to change the order of chapters after uplading/scheduling, so make sure everything is in order before you upload the first of many episodes 
Good luck with your novel! <3