I’m not sure if I have understood your request correct.
The MIDI folder located in the MediaBay section contains MIDI loops that are assigned to selected instruments. Double tap on a loop loads it into the arrangement along with the assigned instrument. Loading the loop via long tap /drag & drop loads the loop itself (without changing instruments that have been assigned before).
The Instruments folder provides the option to set a channel to “No Instrument”, displays available Inter-App audio as well as the on-board MicroSonic and Micrologue instruments. The instrument previews have been included to give an idea about how the instrument sounds but can’t be loaded as a MIDI phrase. Double tap or long tap / drag & drop leads to loading the instrument only.
Hope that helps to answer your question!
Best
Lars