Way to make copy paste not ripple push rest of the track

Lets say you were adding muzzle flash effect to a machine gun for an example. (I’m not, just using it as an example).
You’d have the muzzle effect video clip as something to overlayed on top of the footage, with blend mode overlay. And given the nature of the machine gun, this effect needs to be repeated many times.
You could copypasted this effect to many places the clip yes, but if the timing of the rest of the clips track is ruined after, as they get pushed.
So please add some toggle to disable the pushing of rest of the track when pasting.

Put the muzzle flash on its own track above others.

Use Overwrite instead of Paste