Hello rubberjack. Popup thank you for the response. I did not realize there were ANY issues regarding loading from an external source (e.g., website) whatsoever. Today I'm mostly out-of-touch but I'll check into this tomorrow. If there is a problem, I'll be fixing it for the next release.
Please note: if the expected method doesn't work, and popup's method doesn't work, you can also drag the .mididesigner file in via iTunes. This requires a connection to a computer and so it's not ideal. Anyway, I'll be back tomorrow with some additional news. Thanks again.
Best!
Dan