I've conduct training on location in 40 cities a year using PowerPoint. With the Corona Virus scare I am using Facebook Live Groups for my presentations so that participants can avoid public gatherings and be trained form the comfott of their homes or offices. I hoped OBS would make this easy, BUT you cannot advance the various slides in PP unless PowerPoint is displayed full screen. Although the slides will easily display within the OBS program, you cannot advance the slides with the computer keyboard or even with a remote control, unless the PowerPoint host computer is displaying full screen. As soon as you shrink the Powerpoint display, you no longer have the ability to advance the slides. And when you shrink the OBS screen, you loose the ability to use any of the controls in OBS. I've been to several PowerPoint User Group meetings and everyone shares the same issue with OBS, whether they are using laptops or desktops . I realize there is a lot of misinformation on some of the Youtube How-To videos regarding the use of Powerpoint with OBS . I do know of several workarounds using more than one computer. But does anyone have a solution involving the use of just one computer? Thank you in advance for you help.