Can’t there be a “From Center” setting in Preferences>Tools? The only reason I ask is because the only way currently to design accurate, concentric ellipses and rectangles is to use either the Rectangular or Elliptical Marquee tool, then Select>Border…, then fill in the selection. It’s quite tedious and another downside of this method is that you can’t get the unique brush shapes and outlines that you get when using the rectangle or ellipse drawing mode.