# OSOPTIONS System Variable [GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [System Variables](Help%20System/GSTARCAD/2027/System%20Variables/(System%20Variables).md) **Function Description:** The OSOPTIONS system variable is used to control whether to suppress object snap on hatch objects, geometry with negative Z values, or dimension extension lines. | | | | --- | --- | | Type | Bitcode | | Saved in | Registry | | Initial value | 3 | | Range | 0 ~ 3 | **System Variable Value:** **0:** users can object snap on hatch objects and geometry with negative Z values when in dynamic UCS **1:** the object snap ignores hatch objects **2:** the object snap ignores geometry with negative Z values when in dynamic UCS --- [Original help](https://www.gstarcad.net/help/GstarCAD_2027_en-US/detail/systemVariables/OSOPTIONS.html) · © Gstarsoft Co., Ltd.