Bricks Loops are awesome. Even better you can add your own custom queries. However, currently, it looks like there is no way to add controls to pass parameters to these queries.
However, there is a way, by conditionally add controls to the "Content" tab when your query is selected. For me, this opens up huge opportunities for the Bricks Loops.
Thanks to Sridhar Katakam for pointing me in the right direction and to itchycode.com for the solution.
References:
Bricks labs article to add custom queries: https://brickslabs.com/adding-any-cus...
Itchycode for the solution: https://itchycode.com/integrate-jeten...
PHP code used in demo: https://wpeasy.sharepoint.com/:u:/s/W...