# Commands about the UCS [GstarCAD 2023](Help%20System/GSTARCAD/2023/Index.md) → [Commands](Help%20System/GSTARCAD/2023/Commands/(Commands).md) **Commands：** - [PLAN](Help%20System/GSTARCAD/2023/Commands/PLAN.md) - [UCS](Help%20System/GSTARCAD/2023/Commands/UCS.md) - [UCSICON](Help%20System/GSTARCAD/2023/Commands/UCSICON.md) - [UCSMAN](Help%20System/GSTARCAD/2023/Commands/UCSMAN.md) **System Variables：** - [ELEVATION](Help%20System/GSTARCAD/2023/System%20Variables/ELEVATION.md) - [EXTNAMES](Help%20System/GSTARCAD/2023/System%20Variables/EXTNAMES.md) - [PUCSBASE](../System%20Variables/PUCSBASE.md) - [UCSAXISANG](../System%20Variables/UCSAXISANG.md) - [UCSBASE](../System%20Variables/UCSBASE.md) - [UCSDETECT](../System%20Variables/UCSDETECT.md) - [UCSFOLLOW](../System%20Variables/UCSFOLLOW.md) - [UCSICON](../System%20Variables/UCSICON.md) - [UCSNAME](../System%20Variables/UCSNAME.md) - [UCSORG](../System%20Variables/UCSORG.md) - [UCSORTHO](../System%20Variables/UCSORTHO.md) - [UCSVIEW](../System%20Variables/UCSVIEW.md) - [UCSVP](../System%20Variables/UCSVP.md) - [UCSXDIR](../System%20Variables/UCSXDIR.md) - [UCSYDIR](../System%20Variables/UCSYDIR.md) - [WORLDUCS](../System%20Variables/WORLDUCS.md) --- [Original help](https://www.gstarcad.net/help/GstarCAD_2023_en-US/detail/commandReferences/Commands%20about%20the%20UCS.html) · © Gstarsoft Co., Ltd.