vMix Live Production Software Pro - Manual (Page 204)

vMix User Guide
204 / 208
A number of display options are supported including EBU/SMPTE, 80/90% and grids of various sizes.
Safe Areas can also be displayed and controlled from the Input Settings window.
Undo Button
After completing an action in vMix, an Undo button may appear next to the Preset buttons at the top right of
vMix
Press this button to undo that action.