Memory is really tight on the OSSC at the moment, and I am afraid only importing may be viable. I have been working on support for importing settings from the microSD card and even just that takes us within a few hundred bytes (note: not kilobytes!) of using all of the remaining usable memory. I am still trying to get the memory usage lower, but do not expect any miracles.
Writing a PC application to manage settings and write them to the SD card is probably the way to go, especially given that there simply is not enough memory left on the OSSC to maintain any kind of backward compatibility for existing settings when the firmware is upgraded.