# O [GstarCAD 2023](Help%20System/GSTARCAD/2023/Index.md) ## Topics - **OBJECTSCALE Command** — [Alphabetical reference](Help%20System/GSTARCAD/2023/Commands/O/OBJECTSCALE%20Command.md) · [General reference](Help%20System/GSTARCAD/2023/Commands/OBJECTSCALE.md) - [OCMP Command](Help%20System/GSTARCAD/2023/Commands/O/OCMP%20Command.md) - [OFFSET Command](Help%20System/GSTARCAD/2023/Commands/O/OFFSET%20Command.md) - **OLECONVERT Command** — [Alphabetical reference](Help%20System/GSTARCAD/2023/Commands/O/OLECONVERT%20Command.md) · [General reference](Help%20System/GSTARCAD/2023/Commands/OLECONVERT.md) - **OLELINKS Command** — [Alphabetical reference](Help%20System/GSTARCAD/2023/Commands/O/OLELINKS%20Command.md) · [General reference](Help%20System/GSTARCAD/2023/Commands/OLELINKS.md) - **OLEOPEN Command** — [Alphabetical reference](Help%20System/GSTARCAD/2023/Commands/O/OLEOPEN%20Command.md) · [General reference](Help%20System/GSTARCAD/2023/Commands/OLEOPEN.md) - **OLERESET Command** — [Alphabetical reference](Help%20System/GSTARCAD/2023/Commands/O/OLERESET%20Command.md) · [General reference](Help%20System/GSTARCAD/2023/Commands/OLERESET.md) - **OLESCALE Command** — [Alphabetical reference](Help%20System/GSTARCAD/2023/Commands/O/OLESCALE%20Command.md) · [General reference](Help%20System/GSTARCAD/2023/Commands/OLESCALE.md) - **OOPS Command** — [Alphabetical reference](Help%20System/GSTARCAD/2023/Commands/O/OOPS%20Command.md) · [General reference](Help%20System/GSTARCAD/2023/Commands/OOPS.md) - **OPEN Command** — [Alphabetical reference](Help%20System/GSTARCAD/2023/Commands/O/OPEN%20Command.md) · [General reference](Help%20System/GSTARCAD/2023/Commands/OPEN.md) - [OPEN3RD Command](Help%20System/GSTARCAD/2023/Commands/O/OPEN3RD%20Command.md) - **OPENSHEETSET Command** — [Alphabetical reference](Help%20System/GSTARCAD/2023/Commands/O/OPENSHEETSET%20Command.md) · [General reference](Help%20System/GSTARCAD/2023/Commands/OPENSHEETSET.md) - **OPTIONS Command** — [Alphabetical reference 1](Help%20System/GSTARCAD/2023/Commands/O/OPTIONS%20Command.md) · [General reference 1](Help%20System/GSTARCAD/2023/Commands/O/OPTIONS%20Dialog%20Box%20(General%20Reference).md) · [Alphabetical reference 2](Help%20System/GSTARCAD/2023/Commands/OPTIONS%20Dialog%20Box.md) · [General reference 2](Help%20System/GSTARCAD/2023/Commands/OPTIONS.md) - **ORTHO Command** — [Alphabetical reference](Help%20System/GSTARCAD/2023/Commands/O/ORTHO%20Command.md) · [General reference](Help%20System/GSTARCAD/2023/Commands/ORTHO.md) - **OSNAP Command** — [Alphabetical reference](Help%20System/GSTARCAD/2023/Commands/O/OSNAP%20Command.md) · [General reference](Help%20System/GSTARCAD/2023/Commands/OSNAP.md) - [OUTLINE Command](Help%20System/GSTARCAD/2023/Commands/O/OUTLINE%20Command.md) - **OVERKILL Command** — [Alphabetical reference](Help%20System/GSTARCAD/2023/Commands/O/OVERKILL%20Command.md) · [General reference](Help%20System/GSTARCAD/2023/Commands/OVERKILL.md) - **OVERKILL Command Line** — [General reference](Help%20System/GSTARCAD/2023/Commands/O/OVERKILL_CLI%20(General%20Reference).md) · [Alphabetical reference](Help%20System/GSTARCAD/2023/Commands/OVERKILL_CLI.md) [Original category](https://www.gstarcad.net/help/GstarCAD_2023_en-US/menu/commandReferences_O.html)