MrkConMark construction lines and circles
Mark only construction lines and circles by indication or all in the current scope.
You can mark construction elements by choosing to indicate the construction elements singularly or all in the current scope.
The status of the Auto clear switch (ON or OFF) will determine when
patterns and elements must be marked for manipulation. The auto clear
switch can be toggled on the status bar.
Set the highlight preference on the Settings menu to Marked, Bright or
Dotted to see clearly what is currently marked.