What you can do is have a checklist added to some dummy (or placeholder) card, and add this checklist with a command with the Butler Power-Up to other cards.
That's your use case 2 (instead of manually copying it across cards).
In regards to your use case 1: It appears tricky to update all those checklists that originate from one master checklist - afterwards. I wouldn't say it is impossible, but it is probably causing you a lot of operations that eat into your budget - unnecessarily.
Can you explain a bit more why you want to do this? Maybe I can think of a workaround for you.
Let me know if you need further assistance for your use case 1.
Thanks for your answer. Dummy card idea is a good idea.
Ideally, we are looking to be able to add/remove an item or two onto a checklist that is present in many cards. In this instance we may just have to manually add the information. But to avoid this in the future, would like to set up an editable master checklist that would live update.
I was on my way of setting up a command sample for you when I realized that the appropriate action of removing a checklist item isn't available in the Butler Power-Up, yet.
I requested this feature a few weeks ago myself, so it is on its way.
Another question: Are you using the check/uncheck feature for checklists?
If you don't, I could think of a way to simple replace checklists, once the master checklist is updated. But that would mean that checks for checklist items would get lost.
Here is the Trellinator code to add any new checklist items in the correct order, maintaining existing checked item state, to existing checklists when you update your template, and this won't consume any Butler operations (but requires a G-Suite user to run the code):
You can see how to set up Trellinator here:
If you had to thrive a new habit during a lockdown, what would it be? Trello
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