How do you change the pivot point?

Unity Engine
1

I want to just scale a square so that it goes straight up in the positive y axis and not the positive and negative. To do this I need to have the pivot at the base of the cube right? Can you do this in unity?

2

As a hack create an empty gameobject with y=0 and parent a cube to it, scale 1,1,1 position 0,0.5,0 and scale the EGO parent node. Otherwise its a job to be done in a modelling app, and yes you’d put the pivot at the bottom.

HTH
AC