Source stacking.

[oefu]

Source stacking. I just followed this useful tutorial video from Mowgli TV: https://youtu.be/WGxpFibX2ZE?si=hswTIxux1eDf7jbI I learned that (only) one instance of a source generator can be added as an effect to a video clip if the video clip has a soundtrack. I suggest that this option be expanded so that you can stack several source generators on top of each other, in the same way that effects can be stacked. Then it will be easier to synchronize movements in different sources by using a common dashboard knob.

[mowgli]

that's not accurate. Generators are not the same as effects (they are similar though) You can only ever have a single instance of a generator on a clip, whether there's audio or not. To use several generators together you can use groups instead.