# SHOWLAYERUSAGE 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 SHOWLAYERUSAGE system variable is used to display icons to indicate whether the layer is in use in layer property manager. | | | | --- | --- | | Type | Integer | | Saved in | Registry | | Initial value | 0 | | Range | 0,1 | ## System Variable Value: **0:** disable it to improve performance in layer property manager **1:** enable it to display the icon indicating whether the layer is in use --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables_Sgsv/SHOWLAYERUSAGE.html) · © Gstarsoft Co., Ltd.