2024 cad api area plans are schedule attribute autocad autolisp bim bim 360 block cad standards civil3d civil 3d cleanup construction cloud crop region delete all dynamic block dynamic blocks dynamo error autocad crash errors file dialog box filters foundation walls grading optimization hardware join geometry layer lighting fixtures linetype linetypes lineweight lisp magazine management mep engineering model model in place override overrides pipe plumbing point projection properties pyrevit questions recursive loop renewal replace revit revit architecture roofs schedules script shape sheet shp stacked fractions standards structural models tag family text tool palette topo solids troubleshooting vba visibility states xref