Is there a way to create a new scene without interrupting the one currently playing?

Hi C1. In short: no there is no way to do that. That is referred to as a "Blind" mode. and my dmx does not have that.
Sincerely,

Sounds like that needs to be the next program patch

Blind mode is going to be something in advanced programs. Mainly you have to be able to work in both a potentially "live" and "offline" environment at once is no easy task.

I'm also using Compu Show and Compu Live. I'm not sure if these two products support blind mode, but I had an experience over the 4-day Sac Horror Film Fest where I had to do lighting design during the breaks. I simply unplugged the DMX signal from the interface in order to maintain the blackouts. Wasn't perfect, but it got the job done. Again, I'm not sure if those products support blind mode, but for the costs, I imagine that they have a better chance of supporting that over MyDMX ever having it.

Try this. Open MyDMX, and load your show in USB mode. Open a second cop of MyDMX (this will open in demo mode). Load the same show.dlm. Now while running a scene on you "USB Mode" copy. Try editing and saving your edit in your second copy. You may have to go to File>load>show.dlm for it to refresh. I am not sure if this will work, and I will probably not have time to try it until my show this saturday.

@Chris, yes both compu live and compu show support Blind/Live mode.

@stevie, nice tip. might be worth it for the OP to check it out.

Sincerely,