Following the development of other builders, there might soon be one of the first with rather unrestricted query loop possibilities. A loop element which acts as an invisible (no code output) container seems the best solution to provide query loop functionality.
The current approach of Bricks, with a single root element and query loop enabled elements is restricted and leads to tedious workarounds like replacing whole loops with PHP or fiddling around with several layers of nested queries and still end up with a non-perfect solution.
It would be a huge deal for pro users, when the restrictions from the essential loops would be removed. With new builders on the horizon, this would be another point to ensure customers can be kept. I am sure many are not even aware of the impact of this feature request.
A loop element could even be the one and only element dealing with queries. Then no element needs this special loop parameter.
@Matej Ever considered that?