In Version 18.0, several DoubleCAD tools were introduced into TurboCAD. There are 5 drawing tools found under the Draw command, 3 modifying tools under the Modify command and 7 Construction tools that are basically duplicates of many of the original TurboCAD Construction tools. There is no toolbar for these tools in the Classic UI, but one can easily be created.
In version 18.1 they broke these tools up; the Pro editions got the Draw tools, while Deluxe and Designer got the Modify tools. The Construction tools are found in all editions.
In the version 20 Pro editions, they added back the Modify tools and dropped the Box tool.
They also added Circle, Arc and Ellipse tools to the Draw Command Category. The Help file state that these tools should only be available in LTE Workspace style (Pro editions), but they are found in the Default Workspace style.
DrawDraw / Line Create straight line segments. LINE.
Draw / Rectangle Insert a rectangle.
Draw / Polyline Insert a series of connected lines.
Draw / Polygon Insert a regular polygon.
Draw / Modeling / Box Draw a box by defining 3 vertices. (Box was discontinued in V20)
ModifyModify / Trim Trim objects.
Modify / Extend Extend objects.
Modify / Erase Remove objects from a drawing.
ConstructionConstruction Line Insert a construction line
Horizontal Construction Line Insert a horizontal construction line
Vertical Construction Line Insert a vertical construction line
Angular Construction Line Insert a angular construction line
Bisection Construction Line Insert a bisection construction line
Offset Construction Line Insert a offset construction line
Perpendicular Construction Line Insert a perpendicular construction line
CircleCenter, Radius Insert a circle by defining its center and radius.
2 Points Insert a circle using two endpoints of the diameter.
Tangent to Line Insert a circle tangent to a line with specified radius.
3 Points Insert a circle using three points on the circumference.
Concentric Insert concentric circles.
Tangent to 3 Arcs Insert a circle tangent to three arcs.
Tan, Tan, Tan Insert a circle tangent to three objects.
Tan, Tan, Radius Insert a circle tangent to two objects with specified radius.
Tangent to Arc or Curve Insert a circle tangent to an arc or circle or curve with specified radius.
ArcCenter, Start, End Insert an arc using center, start point and endpoint.
Center, Start, Angle Insert an arc using center, start point and included angle.
Center, Start, Length Insert an arc using center, start point and length of chord.
Start, Center, End Insert an arc using the start point, center and endpoint.
Start, Center, Angle Insert an arc using start point, center and included angle.
Start, Center, Length Insert an arc using start point, center and length of chord.
3 Points Insert an arc using three points.
Start, End, Angle Insert an arc using start point, endpoint and included angle.
Start, End, Direction Insert an arc using start point, endpoint and starting direction.
Start, End, Radius Insert an arc using start point, endpoint and radius.
Start, End, Included Insert an arc start point, endpoint and included point.
EllipseAxis, End Insert an ellipse or elliptical arc.
Center Insert an ellipse using specified center point.
Arc Insert an elliptical arc.