Thanks for your instructions.
I apologize if you folks already discussed this solution, but when reading some excerpts of your conversation, I believe I understand you want to scale x, y, and z differently. If not, at least now you know it can be done with the just native scale tool.
Select the objects(s) you want to scale
Activate the scale tool and select the diagonal grip
Type in the scale factors for each axis separated by a comma
100,125.6,30 (for 100%, 125.6%. 30%)
I’m pretty sure that this is Red, Green, Blue respectively.
Just checked this on 2020…works perfectly!