Trying to create 'Song' control structure within MC8 Pro

As probably many users of fractal audio axe fx2, I am using its Scene function within each preset. Which means that I have certain FX blocks either on/off in each scene. Any of each 8 scenes can be recalled with a specific CC# + value (i e 0 - 7). This is the foundation for my Song structure, that I am trying to ‘create’ within the MC8 pro.
So in my case:

Bank = a ‘Song’ (bank transmits a specific PC# to axe fx 2).
Bank (Page 1) preset:

A:
The preset actually ‘containing’ the song parts ( = axe fx 2 scenes) in any specific order. By utilizing the Message Scroll within this preset. Each message is a ‘Song part’. This means that there are a potential for 32 parts in one song. Of all our songs in my band, I think I have maxed at 10 parts so far. If I would like to even (re)name the parts at each scene, the messages in use would be double. Still doable.

FEATURE REQUEST:
Ability of a function of ‘current’ message scroll -1 (load previous) of same/another preset.
Ability of a function of ‘current’ message scroll +1 (load next) of same/another preset.

A preset (message scroll) basically function as an value-array. That you can step thru back and forth in a consecutive order (without a linearity in the values transmitted). Really powerful.

I am aware of ‘message scroll direction’ and it works but would really prefer to have two separate switches controlling the same message scroll.