# O [GstarCAD 2018](Help%20System/GSTARCAD/2018/Index.md) → [System Variables](Help%20System/GSTARCAD/2018/System%20Variables/(System%20Variables).md) ## Topics - [OBJECTISOLATIONMODE System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OBJECTISOLATIONMODE%20System%20Variable.md) - [OBSCUREDCOLOR System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OBSCUREDCOLOR%20System%20Variable.md) - [OBSCUREDLTYPE System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OBSCUREDLTYPE%20System%20Variable.md) - [OFFSETDIST System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OFFSETDIST%20System%20Variable.md) - [OFFSETGAPTYPE System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OFFSETGAPTYPE%20System%20Variable.md) - [OLEFRAME System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OLEFRAME%20System%20Variable.md) - [OLEHIDE System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OLEHIDE%20System%20Variable.md) - [OLEQUALITY System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OLEQUALITY%20System%20Variable.md) - [OLESTARTUP System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OLESTARTUP%20System%20Variable.md) - [OPENPARTIAL System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OPENPARTIAL%20System%20Variable.md) - [OPMSTATE System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OPMSTATE%20System%20Variable.md) - [ORTHOMODE System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/ORTHOMODE%20System%20Variable.md) - [OSDISTANCE System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OSDISTANCE%20System%20Variable.md) - [OSDIVIDE System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OSDIVIDE%20System%20Variable.md) - [OSMODE System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OSMODE%20System%20Variable.md) - [OSNAPCOORD System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OSNAPCOORD%20System%20Variable.md) - [OSNAPNODELEGACY System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OSNAPNODELEGACY%20System%20Variable.md) - [OSNAPZ System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OSNAPZ%20System%20Variable.md) - [OSOPTIONS System Variable](Help%20System/GSTARCAD/2018/System%20Variables/O/OSOPTIONS%20System%20Variable.md) - [System variable with O letter](Help%20System/GSTARCAD/2018/System%20Variables/O/System%20variable%20with%20O%20letter.md)