# SHOWLAYERUSAGE System Variable [GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [System Variables](Help%20System/GSTARCAD/2027/System%20Variables/(System%20Variables).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_2027_en-US/detail/systemVariables/SHOWLAYERUSAGE.html) · © Gstarsoft Co., Ltd.