Drop-down with available files

Is it possible to have a UI drop-down in a Build Pipeline (like the one from predefined parameters) but showing all files available in a specific location? In other words, I want to be able to parse a specific location and then display all files and after that be able to use the selected file in a Build or Release pipeline.

I know a similar feature exist in a Release Pipeline for artifacts where you can select a specific artifact and use it, but I need to be able to select a specific file in a Build Pipeline.

Thank you.