I never thought to even ask this, but can you move a mob's height with the mouse? I know you can move it around and spin it with the mouse wheel, but what about the height?

You can with the fly command on but its a pain in the ass

You can always /spawn set y and increase the value that way.

I know, or I just hand key it in. I was just seeing if there was a keyboard shortcut I did not know of.

When using /spawn move try holding ctrl and move the mouse wheel

No go

That is how it is done with housing on live so we must not support it on the emu currently

i long while back when i was working with housing i never did get the movement thing working correclting, just the old style item placement
one of these days ill be looking itno it again