What I have done before to get round this is add a thin column to the right of the item and I set this as the toggle item for the group below. You can then set the hidden property of this item to be based on an expression which would control whether it shows or not.
This may be reawakening a 4-year old post, but Spiff's solution just saved me a **LOAD** of time trying to find a way around this issue.
Thanks so much!!! 😀
Kindest Regards,
Mike M