# A [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [Commands](Help%20System/GSTARCAD/2021/Commands/(Commands).md) ## Topics - [A Command](Help%20System/GSTARCAD/2021/Commands/A/A%20Command.md) - [ABOUT Command](Help%20System/GSTARCAD/2021/Commands/A/ABOUT%20Command.md) - [ACISIN Command](Help%20System/GSTARCAD/2021/Commands/A/ACISIN%20Command.md) - [ACISOUT Command](Help%20System/GSTARCAD/2021/Commands/A/ACISOUT%20Command.md) - [ADCCLOSE Command](Help%20System/GSTARCAD/2021/Commands/A/ADCCLOSE%20Command.md) - [ADCENTER Command](Help%20System/GSTARCAD/2021/Commands/A/ADCENTER%20Command.md) - [ADCNAVIGATE Command](Help%20System/GSTARCAD/2021/Commands/A/ADCNAVIGATE%20Command.md) - [ADDSELECTED Command](Help%20System/GSTARCAD/2021/Commands/A/ADDSELECTED%20Command.md) - [ALIGN Command](Help%20System/GSTARCAD/2021/Commands/A/ALIGN%20Command.md) - [ALIGNTOOL Command](Help%20System/GSTARCAD/2021/Commands/A/ALIGNTOOL%20Command.md) - [APERTURE Command](Help%20System/GSTARCAD/2021/Commands/A/APERTURE%20Command.md) - [ARC Command](Help%20System/GSTARCAD/2021/Commands/A/ARC%20Command.md) - [AREA Command](Help%20System/GSTARCAD/2021/Commands/A/AREA%20Command.md) - [AREASUM Command](Help%20System/GSTARCAD/2021/Commands/A/AREASUM%20Command.md) - [AREATABLE Command](Help%20System/GSTARCAD/2021/Commands/A/AREATABLE%20Command.md) - [ARRANGETOOL Command](Help%20System/GSTARCAD/2021/Commands/A/ARRANGETOOL%20Command.md) - [ARRAY Command](Help%20System/GSTARCAD/2021/Commands/A/ARRAY%20Command.md) - [ARRAYCLASSIC Command](Help%20System/GSTARCAD/2021/Commands/A/ARRAYCLASSIC%20Command.md) - [ARRAYCLASSIC Command Line](Help%20System/GSTARCAD/2021/Commands/A/ARRAYCLASSIC%20Command%20line.md) - [ARX Command](Help%20System/GSTARCAD/2021/Commands/A/ARX%20Command.md) - [ATTACH Command](Help%20System/GSTARCAD/2021/Commands/A/ATTACH%20Command.md) - [ATTDEF Command](Help%20System/GSTARCAD/2021/Commands/A/ATTDEF%20Command.md) - [ATTDEF Command Line](Help%20System/GSTARCAD/2021/Commands/A/ATTDEF%20Command%20line.md) - [ATTDISP Command](Help%20System/GSTARCAD/2021/Commands/A/ATTDISP%20Command.md) - [ATTEDIT Command](Help%20System/GSTARCAD/2021/Commands/A/ATTEDIT%20Command.md) - [ATTEDIT Command Line](Help%20System/GSTARCAD/2021/Commands/A/ATTEDIT%20Command%20line.md) - [ATTEXT Command](Help%20System/GSTARCAD/2021/Commands/A/ATTEXT%20Command.md) - [Attribute Increment Command](Help%20System/GSTARCAD/2021/Commands/A/Attribute%20Increment%20Command.md) - [AUDIT Command](Help%20System/GSTARCAD/2021/Commands/A/AUDIT%20Command.md) - [AUTOLAYER Command](Help%20System/GSTARCAD/2021/Commands/A/AUTOLAYER%20command.md) - [Command Alias Command](Command%20Alias%20Command.md) - [DesignCenter Window](Help%20System/GSTARCAD/2021/Commands/A/DesignCenter%20Window.md) - [Export Attribute Information Command](Export%20Attribute%20Information%20Command.md) - [Import Attribute Information Command](Import%20Attribute%20Information%20Command.md) - [Synchronize Attributes Command](Synchronize%20Attributes%20Command.md)