How do I go from two monitors in my preview screen, to just the powerpoint presentation in my preview screen?

[mcdaniel480]

I am new to OBS, and I am having problems getting my powerpoint to show in my preview screen by itself (i.e. without the monitor). Right now I am running my powerpoint on an external MacBook using NDI to my iMac that has OBS. I am also running my PPT to a monitor from the same MacBook. Essentially, I am wanting my presenter screen to look like my monitors, but I am getting both within my OBS PREVIEW screen. I am not very techy, so please any help would be appreciated!

 

[MacNut]

There's probably a more elegant solution, but you can right-click on your laptop source and then click on transform -> edit transform. In the "Scene Item Transform" window that appears, you can crop out the screen on the left side by adjusting the crop value for the left side.