Updating my checklist

I have spent nearly a month teaching myself how to make a checklist. For me, this has been an arduous task.
Now, when I want to add an emergency section to the checklist, I find only the title
To be clear, I can see the checklist in history. Ivan call it up and use it, but I cannot get it to the Mira cloud to update it. If I go to resume, it’s there