DISPSILH (System Variable) ??
https://knowledge.autodesk.com/support/autocad/learn-explore/caas/CloudHelp/cloudhelp/2022/ENU/AutoCAD-Core/files/GUID-AFD89831-0DE8-4398-8774-0C3F8DB0D228-htm.html?us_oa=search-us&us_si=8e968409-07a7-4e92-92c7-33af73d56001&us_st=dispsilh