Creating new lists:
To create a new list, click on the name of the list you're currently in (that's located just above the search bar). After tapping that, you'll be taken to a list of your lists - and at the very top, you'll see an orange row that says "Create a new list". Click there, type the name of your new list, hit "Done" and you are ready to go! You'll need to select the new list from your list of lists if you want to edit it. Watch this little GIF if you'd like to see in slow motion how it works:
Toggling between lists:
Let's say you want want to go to another Shopping List. Once again, click on the name of the list you're currently in (above the search bar) and you'll see a list of all your shopping lists (or pantry lists, as the case may be). From there you can choose the list you'd like to edit and/or use.