In the new version, you can download only one that was set to "listen later".
The reason for this implements, the mechanism for operating the automatic download cache programmatically because is difficult to control.
So I do not want to easily implement. There was a problem in previous versions.
for example, Occasionally was freeze I this was due.
Future, even as to implement a mechanism to control the creation of the cache by WIFI of state, must be implemented fully studied.
Before that, although implementation of management processing of cache folder will be ahead.