# VPSYNC Command [GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [Commands](Help%20System/GSTARCAD/2027/Commands/(Commands).md) → [V](Help%20System/GSTARCAD/2027/Commands/V/(V).md) ## Function Description: This command is used to synchronize one or more layout viewports to a master layout viewport to have the exact locations match up, and all synchronized viewports use the zoom factor of the master viewport. It is essential for printing super-long drawings separately or matching up maps precisely. ## Command Access: > **Icon:**  > **Menu:** Express > Layout Tools > Synchronize Viewports > **Ribbon:** Express > Layout > Synchronize Viewports > **Toolbar:** ET: Layout Tools > Synchronize Viewports > **Command:** VPSYNC > **Alias:** / ## Command Prompts: ``` Select master viewport: ``` ``` Select viewports to be aligned to master viewport: ```  --- [Original help](https://www.gstarcad.net/help/GstarCAD_2027_en-US/detail/commandReferences_V/VPSYNC.html) · © Gstarsoft Co., Ltd.