Can I run two projectors with two different screens with one 27 imac

[newhavenalex]

Please help for the last two days i have tried to figure this out. Here is the situation. I work for a church, we have a projector at the front of the church and one at the back of the church. What is projected on the front screen is not necessarily what needs to be on the back screen. I got the 27 inch imac because it had two thunderbolt ports which I was told would run both projectors simultaneously, but the computer will only let me pick one screen or the other to act as the output. I am running the program called propresenter 4, maybe its a problem with it, not sure. Any advice will be greatly appreciated

 

[Stetrain]

Can you use both screens at once without your presentation software? I would try activating them both in System Preferences and then try to drag windows over to them.

If you can make that work but can't use them both with your presentation software then it's something to do with the software.