No... on pretty much most arrangers, anything sent to auxiliary outputs loses all it's effects. You can't add reverb at the mixer, because then it becomes one global amount added to the entire kit, washing the kick with too much, or missing the percussion with too little, etc..

And I run stereo, before you say pan the kick to one side and the rest to the other!

As far as I can see, adding a global offset to a particular part doesn't seem to be an insurmountable technical challenge. It just remains to be seen if the demand for the feature is great enough for anyone (particularly Yamaha ) to add it...

It might, at least, go a long way towards making the 'no punch' Yamaha critics have an easy solution (or at least, partial solution) to the problem...
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An arranger is just a tool. What matters is what you build with it..!