This might work better since you are in a separate tab already. I couldn’t find any documentation that assigning a key to manual transactions in the official tiller tab would confuse something or other on the Tiller side.
At some point I will probably try to pull in to a separate sheet as that seems much more robust than relying on the formatted results.
Also putting the structured data in explicit tabs rather than hiding to the right in the monthly budget would be a good way to improve the structure of the tiller foundation sheet.