# U [GstarCAD 2023](Help%20System/GSTARCAD/2023/Index.md) ## Topics - **UCSAXISANG System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSAXISANG%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSAXISANG.md) - **UCSBASE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSBASE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSBASE.md) - **UCSDETECT System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSDETECT%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSDETECT.md) - **UCSFOLLOW System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSFOLLOW%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSFOLLOW.md) - **UCSICON System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSICON%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSICON.md) - **UCSNAME System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSNAME%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSNAME.md) - **UCSORG System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSORG%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSORG.md) - **UCSORTHO System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSORTHO%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSORTHO.md) - **UCSVIEW System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSVIEW%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSVIEW.md) - **UCSVP System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSVP%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSVP.md) - **UCSXDIR System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSXDIR%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSXDIR.md) - **UCSYDIR System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSYDIR%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UCSYDIR.md) - **UNDOCTL System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UNDOCTL%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UNDOCTL.md) - **UNDOMARKS System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UNDOMARKS%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UNDOMARKS.md) - **UNITMODE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UNITMODE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UNITMODE.md) - **UOSNAP System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UOSNAP%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UOSNAP.md) - **UPDATETHUMBNAIL System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UPDATETHUMBNAIL%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2023/System%20Variables/U/UPDATETHUMBNAIL.md) [Original category](https://www.gstarcad.net/help/GstarCAD_2023_en-US/menu/systemVariables_Ugsv.html)