Keystone Correction (Vertical)In the Home Screen, select Settings, then go to Projection Setting > Keystone Correction Vertical. By default, this is set to Auto, but you can also choose to adjust the setting manually.Keystone Correction (Horizontal)In the Home Screen, select Settings, then go to Projection Setting > Keystone Correction Horizontal. To enable horizontal keystone, switch the Open option to ON, and you'll be able to adjust the setting manually. You can also choose to make Multi-Angle Adjustments.