Setpt flattens objects?

I am trying to move each object to y=0. as you can see by the preview, it moves “the whole object” to y=0, flattening it out. How do I do this?
image

Have you tried the “Align” command?

I find the BoxEdit panel useful when making specific changes like this. Just have to make sure “Transform Objects Individually ” is checked.

Use “Align” instead.