Hi there, @bamapt… the limitations associated with editing long expressions are well-known, and Bubble is aware of them. With regard to adding parentheses, go to the Settings >> Versions tab and enable the experimental parentheses feature. The expression builder will place the parentheses in the expression for you, and sometimes it can be tricky to get them in the right place. That being said, I have had that feature enabled from day one, and I have never had any trouble with it.