Show cloud folders
With this option enabled, various cloud services (Dropbox, Google Drive, OneDrive, Yandex.Disk, Box, Mega and others) will be displayed in the category list. When you are adding a download or after the download is complete you can choose the desired category and the file will be saved using the corresponding cloud service.
( i ) IDA updates the list of the available cloud services on start.

Show subcategory downloads in a category
If this flag is set, IDA will show in the download list not only downloads of a category but also downloads of all its subcategories.
( i ) Changing this option will not change any download folder.