may i ask- in doing which task do you use the transformer / input transformer function.
can you enlighten me how it can help.
For example transfer a MIDI controller (and it’s value) to another controller. Or set the limits of the controller values. Or change input MIDI Channel. Or filter out some specific Notes, or change parameters (for example Volume, or Channel) of specific Notes, etc., etc.
It just transforms your input data to another data. If you cannot achieve (or get some) data directly from the inpute itself, you can change them online.