Author:3dmax script
Site:http://bodyulcg.com/scripts/region-render-pro/
Translation: Scriptsays
Instructions:
1.After running the script, you need to press “Set Safe Frames”, then press a “Region (on/off)”.
2.When you select other the viewport, it is desirable to press “Set Safe Frames”.
3. After the command “Maximize Viewport Toggle” or pressing the (Alt + W) must necessarily to press “Set Safe Frames”
THE END