Separate "Random" checkboxes for every parameter of the transform each command and effect.
Seperate "Random" checkboxes for every parameter of the "Transform Each" command and effect.
This would allow the user, in one step, to randomize only the selected parameter, (say the vertical scale) but still transform the other parameters (maybe rotation and number of copies) uniformly.
Jan Vork commented
-Randomize scale in a range around the current scale (not only down or up)
-Randomize individual objects that are part of a Compound Shape