In the preferences sheet:
The first sheet has:
| increment_mode | normal | mp_center_sip |
| kb_right_shift | normal | mp_center_sip_soft |
| kb_2 | normal | mp_center_sip_soft |
If the soft sip delay is only 1/8-th of a second, it might be difficult to get past the soft pressure before it times out and you hear the beep and get a shift-2 instead of a click and an increment_mode.
The second sheet has:
| decrement_mode | normal | mp_center_sip |
So there is no way to get to the third sheet.
The third sheet has:
| increment_mode | normal | right_sip |
| decrement_mode | normal | right_sip_soft |
The fourth sheet has:
| increment_mode | normal | right_sip |
| decrement_mode | normal | right_puff |
It could be confusing to have different inputs mapped to the increment/decrement mode functions on each sheet.
These last two sheets are not accessible anyway and may just be left overs.