Currently, it is necessary to import one ROM at a time, but it would be good to be able to select several and import them together. This could be done in the following way:
  1. Choose the console.
  2. Click on "Upload".
  3. When the file manager opens, allow the selection of multiple files.
  4. Upon uploading, validate which files have the correct extensions for that console.
  5. Allow only the correct files to be uploaded.