I'll start with the full disclosure that I am not pro on the RuckOS yet but from what I have seen, when the only option you are given in a drop box is "reload" it means that you need to configure an object that would populate that dropdown. Since the local database drop down gives you only the reload option, I'd guess that you need to create that local database. I wish I could be more helpful and tell you how to do that but here's hoping you may have seen the option or something related to it and this just serves as the brain trigger to do it.
Best luck!