Hi, I got SyncFolders and it looks impressive...and complicated. How do I begin? I don't want to make a mistake and lose anything. It's on the PC, not the phone. I want to be able to add new photos and videos without having to go through the older stuff every time, and without accidentally deleting any material already imported. In case this is device specific, they are a Dell Inspiron 32 bit, probably 2012, and a ZTE Z815.