The Circuit List will display a List of the Circuits located on the design along with details about them.
Circuits are enclosed objects.
Layer
The Layer column displays what Layer the object is located on if it is Traced.
If it is not traced, the circuits reside on layer 1.
Start
The Start column displays the Start X/Y Coordinates of the object's start point when drawn.
If you clicked on the upper left and drew by dragging to the lower right, that would make the start point on the upper left corner.
Size
The Size column displays the size of each object.
Circuit Definition
A Circuit is an enclosed, connected object such as a Rectangle or a Polygon in Trace.
Traced Definition
Tracing the Design provides the Bevel Type and other necessary information to the Vector design in order to either Cut or apply with a Non-Blade Tool on the CMC.
The Set Bevels Tab in Trace contains the tools needed to Trace the design.