Show Cue System

I have a license for the standard version of SCS and have used it for a few events. One of them was last year at a youth concert in a school that we have done for a while. But last year we hung 2 screens and sent the same signal to both screens. We came out of the HDMI from the notebook computer into a HDMI splitter and up to the 2 projectors. For this year’s concert they want to at times have the same slides or video showing on both screens and at other times they want to have something different on each screen. I have played a little bit with last year’s show and I think I know how to do that in SCS. This concert is coming up soon. It is the first week of February.

My question relates to getting 2 outputs out of the windows 7pro 64bit notebook computer. It has 1 HDMI output a few USB2 outputs and 1-USB3 output. I was thinking of using a USB3 to HDMI adapter for one of the projectors and the computers HDMI output for the other projector. Or use a USB3 hub that I already have and used 2 USB3 to HDMI adapters out of the hub. I would hope to find a way that the playback is in sync on both projectors. Does anyone have any experience with doing what I am looking for and do you have any words of warning or suggestions. I am going to borrow a USB3 to HDMI adapter from a friend on Monday so I can test and see if that looks like it will work. Are there any of these adapters that anyone recommends?

Thank you for any help that you can be.