# SSMSTATE System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) → [S](Help%20System/GSTARCAD/2026/System%20Variables/S/(S).md) ## Function Description: The SSMSTATE system variable is used to control the state of Sheet Set Manager window is open or closed. (Read only) | | | | --- | --- | | Type | Integer | | Saved in | Not saved | | Initial value | Unknown | | Range | 0,1 | ## System Variable Value: **0:**closed **1:** open --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables/SSMSTATE.html) · © Gstarsoft Co., Ltd.