What is the resolution of the External Display Output? And are there any controls/settings other than on/off?
In Wirecast version 8.0 and higher, the resolution of the Multi-Viewer is the same as the Wirecast Canvas setting. The refresh rate is the same as the Video Display Rate in the Preferences->Performance tab.
Options to select which sources as well as Preview and Live Area to display
Stephen Sarantopoulos , thank you for the information.
Link to Old Telestream Community Forum