Would it be possible to engineer the software so that one is able to preview the animation in a browser and not see layers that are turned off in Sencha Animator?

I know you can click the play button, in the software, beneath the timeline, but it doesn't usually play smoothly----not sure if that's my couple years old computer's processing capability or not----but I usually preview in a browser constantly while working, and it's annoying that I sometimes have to delete a layer or nest of layers, preview it, and then undo that delete.

When there's a lot of stuff going on, it's really helpful to be able to see a particular layer or group of layers solo-ed from the rest of the composition.