I recently updated my firmware to V01.01.15B, and noticed a new “USB Mode” menu under Settings. It has two selections, “Auto Detect” and “MTP”.
I’m not sure I understand why this menu has “MTP” and not “MSC”. If the Clip is connected to a system that supports MTP, it will use MTP by default. If it’s connected to a system that doesn’t support MTP, you obviously can’t force it into MTP mode.
If I saw “MSC” on this menu, it would make more sense.