RECL command draws a rectangle (or quadrilateral) between two selected lines or polyline segments. It allows you to close custom shaped holes easily.
AutoCAD commandline entry:   RECL 
DRAW: RECTANGLE WITH SPECIFIED AREA
RECA command allows you to draw rectangle with specified area. APLUS will ask for start point and then give you live preview of the rectangle.
AutoCAD commandline entry:   RECA 
ARCHITECTURAL: DRAW RAMP
APLUS can help you design a ramp for underground parking. APLUS decides where to break ramp to make it usable.
AutoCAD commandline entry:   RAMP 
POLYLINES: DRAW PART OF POLYLINE CONTAINED INSIDE OTHER ONE
APLUS can draw part of polyline which lays inside another polyline.
AutoCAD commandline entry:   PLIN 
POLYLINES: DRAW CEILING HOLE SYMBOL FROM SELECTED POLYLINE
With PLHO command you can draw ceiling hole symbol from selected polyline. APLUS will create new, closed polyline.
AutoCAD commandline entry:   PLHO 
HATCHES: DRAW HATCH BOUNDARY
HBO command can draw boundary of selected hatch pattern. This may help you recover some lost information from a drawing.
AutoCAD commandline entry:   HBO 
PLUMBING: DRAW DUCTS
After setting some parameters you may easily design ducts both inside and outside buildings.
AutoCAD commandline entry:   DUCT 
POLYLINES: MOVE, ROTATE OR SCALE MULTIPLE POLYLINE SEGMENTS
PLM command allows you to move multiple polyline segments at once. PLRO rotates polyline segments and PLSC scales them. With these commands you may modify polylines freely.
POLYLINES: DRAW BOUNDARY OF POLYLINE WITH SET WIDTH
With APLUS you may easily draw boundary of polyline with set width. Command PLBO allows you to transform sketches made with thick polylines into normal polylines.
TX command allows you to explode any TEXT or MTEXT object. As a result APLUS will create new polyline objects in place of exploded TEXT or MTEXT object.
With PL2 you can draw double polyline. You may specify width and justification. ALPL is a tool to align polyline segment to extension of a line or a polyline. You can fill closed polyline with termal insulation hatch with HTERM.