I had same problem here, but i could use my PC as a transfer using the network.
In order to preserve my photos names and dates,
If you had your pictures on your PC (windows) you can connect to MyCloud on the explorer browser like \Mycloud\ then you can select the shares where you want to upload ( the server ask the password needed ) and just grag the files or the folders that you want , it preserve the files names and date except for the folders that it use the name but the date is the actual.
In case of Iphone or Ipad to upload the photos , just connect the iphone or ipad onto the usb port of your computer and normally appears a windows ask about if you want to view files or import, if you select the view files, then windows open a explorer pointing the DCIM (wich is where the actual photos of your device is stored) so if you want to upload just drag the folders or photos that you want to the network connection as before.
Of course this alternate is just if you are on the same network that the cloud is . (wich I assume because transfer a lot of pictures will be better do it locally)
If you are outside i tested the file explorer on ipad it work , other if you are on a pc could be smartftp, but you must activate the ftp function on the cloud.
hope this coukd help someone.