Thanks for the reply.
My use case is very simple, some one report a DICOM not working in OHIF, I download it, it goes to the Downloads folder. I drag and drop it in the Slicer to see how Slicer renders it, then Slicer loads all the other +100 downloaded DICOMs in my Download folder.
Drag and drop should just care about the dragged content and not the directory, similar to other apps: e.g., in powerpoint, if you drag and drop an image you don’t get all the other images in that folder imported, word, and other apps too