That’s an interesting point. I took a look at the Play+ manual, and Macros appear to be similar to the ones in Synth, as they allow for one knob to control multiple parameters, and you can define a value specific to each parameter that controls how it is influenced by the macro.
However, the Manual for Play+ appears to contradict itself on the same page (p. 101): It say the starting value for the Macro is the Amount defined in the Macro, then ist says it’s the Parameter value.
and directly below that table:
The text in the Synth manual is more specific about the value in the macro defining the range (p. 87)
and then it even describes how that range would work:
That, however, appears to be contradicted by my measurements, which can be explained neither as the value scaling the range by a factor, nor by the value setting the starting point.
Let’s ask @Mitch, they’ll be able to to clear that up, or at least point to the person who can.