ExternalStorageUpload

ExternalStorageUpload[file] uploads file to an external storage specified by $ExternalStorageBase.

ExternalStorageUpload[file,dest] uploads file to a specific destination dest for external storage services that support it.

ExternalStorageUpload[file->dest] uploads file to a specific destination dest for external storage services that support it. 

ExternalStorageUpload[{file1,file2,…},dest] uploads a list of files to a specific destination dest for external storage services that support it.

ExternalStorageUpload[{file1,file2,…}->dest] uploads a list of files to a specific destination dest for external storage services that support it.

ExternalStorageUpload[{file1->dest1,file2->dest2,…}] uploads a list of files to specific destinations for external storage services that support it.

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