# Z [GstarCAD 2025](Help%20System/GSTARCAD/2025/Index.md) ## Topics - **ZOOMFACTOR System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2025/System%20Variables/Z/ZOOMFACTOR%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2025/System%20Variables/ZOOMFACTOR.md) - **ZOOMWHEEL System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2025/System%20Variables/Z/ZOOMWHEEL%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2025/System%20Variables/ZOOMWHEEL.md) [Original category](https://www.gstarcad.net/help/GstarCAD_2025_en-US/menu/systemVariables_Zgsv.html)