Modifying existing objects	Modifying existing objects
Resizing or reshaping objects
Concepts     Procedure     Commands

Commands
ADD_VERTEX	It adds new vertices to Polylines, Splines and Regions
DEL_VERTEX	It deletes vertices from Polylines, Splines and Regions
LENGTHEN	It modifies the length of objects and the included angle of arcs
PROPERTY	It controls the properties of the existing objects
SCALE	It enlarges or reduces the selected objects proportionally
NUSCALE	It enlarges or reduces the selected objects in a non-proportional way
STRETCH	It moves or stretches objects
CONNSEL	It joins objects to form a single uninterrupted object
SHEAR_X	It shears the objects on the Y axis (X axis fixed) in constant area mode
SHEAR_Y	It shears the objects on the X axis (Y axis fixed) in constant area mode
SHEAR	It shears the objects on free axis in constant area mode
SHEAR_X_A	It shears the objects on the Y axis (X axis fixed) in assonometric mode
SHEAR_Y_A	It shears the objects on the X axis (Y axis fixed) in assonometric mode
SHEAR_A	It shears the objects on free axis in assonometric mode
TO_ARCS	It approximates a polyline formed by many small segments using polyline arcs
TO_SEGMENTS	It approximates a polyline converting arcs into small segments
TO_N_SEGMENTS	It approximates a polyline converting arcs and segments to N segments all with the same length
TO_SPLINE	It rounds a polyline converting it to a Spline
REGION_SPLIT	It split a region in more smaller parts
REGION_ADD_LH	It adds lightening holes of different types to a region