# Commands about Customizing the Drawing Environment [GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [Commands](Help%20System/GSTARCAD/2027/Commands/(Commands).md) → [Command Groups](Help%20System/GSTARCAD/2027/Commands/00%20Command%20Groups/(Command%20Groups).md) **Commands：** - [APERTURE (GstarCAD 2026)](../../../2026/Commands/A/APERTURE.md) - [CLEANSCREENOFF (GstarCAD 2026)](../../../2026/Commands/C/CLEANSCREENOFF.md) - [CLEANSCREENON (GstarCAD 2026)](../../../2026/Commands/C/CLEANSCREENON.md) - [CUI (GstarCAD 2026)](../../../2026/Commands/C/CUI.md) - [DRAGMODE (GstarCAD 2026)](../../../2026/Commands/D/DRAGMODE.md) - [OPTIONS (GstarCAD 2026)](../../../2026/Commands/O/OPTIONS.md) - [REDEFINE (GstarCAD 2026)](../../../2026/Commands/R/REDEFINE.md) - [TOOLBAR (GstarCAD 2026)](../../../2026/Commands/T/TOOLBAR.md) - [UCSICON (GstarCAD 2026)](../../../2026/Commands/U/UCSICON.md) - [VIEWRES (GstarCAD 2026)](../../../2026/Commands/V/VIEWRES.md) - [WORKSPACE (GstarCAD 2026)](../../../2026/Commands/W/WORKSPACE.md) - [WSSAVE (GstarCAD 2026)](../../../2026/Commands/W/WSSAVE.md) - [WSSETTINGS (GstarCAD 2026)](../../../2026/Commands/W/WSSETTINGS.md) **System Variables：** - [APERTURE (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/A/APERTURE.md) - [APPLYGLOBALOPACITIES (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/A/APPLYGLOBALOPACITIES.md) - [CALCINPUT (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/C/CALCINPUT.md) - [CLEANSCREENSTATE (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/C/CLEANSCREENSTATE.md) - [CPROFILE (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/C/CPROFILE.md) - [CURSORSIZE (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/C/CURSORSIZE.md) - [DBLCLKEDIT (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/D/DBLCLKEDIT.md) - [DCTCUST (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/D/DCTCUST.md) - [DCTMAIN (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/D/DCTMAIN.md) - [DEFLPLSTYLE (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/D/DEFLPLSTYLE.md) - [DEFPLSTYLE (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/D/DEFPLSTYLE.md) - [DIASTAT (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/D/DIASTAT.md) - [DRAGMODE (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/D/DRAGMODE.md) - [DRAGP1 (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/D/DRAGP1.md) - [DRAGP2 (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/D/DRAGP2.md) - [EXTNAMES (GstarCAD 2026)](Help%20System/GSTARCAD/2026/System%20Variables/E/EXTNAMES.md) --- [Original help](https://www.gstarcad.net/help/GstarCAD_2027_en-US/detail/commandReferences/Commands%20about%20Customizing%20the%20Drawing%20Environment.html) · © Gstarsoft Co., Ltd.