This would be good to choose source patch for imported images eg. importing from file we declare starting path as local image path starting from magento root folder, but when you choose eg dropbox the name is changed from local... to remote image dir and I assume that this path is related to (in this example) Dropbox root folder not magento? -I think it would be good to be able to choose that we want from remote dir import images like dropbox or from local filesystem with root started from magento2 root like in file import ;) -This is better in my oppinion in fact of easier synchronisation .
best regards