I am currently working off of a 2D architectural AutoCAD drawing. The column grid for the project is not a perpendicular grid. Some areas of the building are rotated. I set up keyboard shortcuts for rotating my USC about the Z axis for when I have to draw/dimension in these areas. However, is there any way to define which areas of the drawing are rotated so that when I hover my tool-tip within those limits my UCS automatically rotates about the z axis?