In particular, I would like to be able to align any text label by its baseline to any straight line (reference plane, model line or detail line).
As an optional parameter to this operation I would like to be able to specify the distance between the bottommost baseline of the aligned text (in case it is a multiline paragraph) and the line it is aligned with, or align along the centre line of the block of text.
Named Reference Planes already exhibit some of the properties of what I'm suggesting (i.e. the name of the plane is aligned by its baseline a certain fixed distance away from line representing the plane).