option output MIDI to other iOS apps such as IK SampleTank instead of using internal

PLEASE PLEASE add the means to output MIDI to other iOS apps such as IK SampleTank of Korg Module etc - so we can get much better quality sounds - and sounds of our choice for each of the 4 parts.

Ideally i should be able to send the drummer part to a drum app, the bass part to a dedicated bass app and keyboards to apps such as Sampletank. , module etc.

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As I understand it, the midi drums use custom (non-standard) mapping and unless re-mapped, can lead to unusual results.
:))BOB