Copying folder using android app

I’m at home using my wifi.  I can view and open files in a folder using the My Cloud app on my Nexus 7.  However I can’t seem to “save to SD card”.  I get “unable to access device”.  I can save to SD card individual files, just not the folder.  If the save to SD card functionality isn’t supposed to work for folder, then don’t give me the option,

If I should be able to copy a folder please tell me what I’m doing wrong.

Hi,

What is the size of the folder that you are trying to save?

Currently the application will allow you to select multiple files within the folder and you can save the selected files to the SD card.

The folder has 252 files and is a total of 35MB in size.

I’ll try selecting the files individually but with that many I’d rather not have to do that.