[Zubersoft]

I installed about 8 different file manager applications and none of them seem to support Google's Storage Access Framework for creating files or folders. So unfortunately my suggestion will not work at all. Until a file manager is found that supports accessing a NAS and also supports Google's Storage Access Framework, there won't be an easy way to solve this problem. In order for me to support saving to a NAS, I would need to implement a large amount of code (basically duplicating all of the code found in any of those popular file manager applications). This is not something I have the bandwidth to work on at the moment unfortunately.

Mike