I would not use that utility with vmix, it is limited to just play lists....Panel Builder can do everything that vMix has, via their API....if you look at my pics, you will see how I have my layouts....everything in one app.....multi-player, for video clips, multi player for titles, and in my case, I have 2 title playlists, one for scripture texts, and one for the lower thirds, and can toggle between the 3 players as in my case, and the multi texts, I have camera inputs, Outputs, transitions, and on another page I have a full audio mixer with db gain buttons, mute, bus select buttons, and all I was thinking of when I was making the template....
Oh, the button with the flag...that is a direct cut to play the National Anthem, and I have it set up to mute all other audios, actually, I have it set to be solo, so if I had something happening and was asked to pay the National anthem, I just punch that, and all other players, overlays, everything is stopped and only the anthem plays......I love PB...the best thing that came out to work with vMix, that is my opinion, so don't beat me up...
Anyone who wants a copy of my template with icons, can PM me......