For those interested in just separating the scale values, similar to Separate X,Y,Z position
Add 3 Slider Control Effects to your Layer
Name them (This is important- they can be any name, but it must match expression):
xScale
yScale
zScale
Then in the scale properties of your layer, add this expression:
x = effect(“xScale”)(“Slider”);
y = effect(“yScale”)(“Slider”);
z = effect(“zScale”)(“Slider”);
[x, y, z]
For 2D layers, simply delete the z properties:
x = effect(“xScale”)(“Slider”);
y = effect(“yScale”)(“Slider”);
[x, y]