I understand what you want to do. I get it. And all of this is possible.
Originally Posted by bush league
What version of Vegas are you using? I'm on VP12, and for some time now (maybe back to VP9?) we've been able to apply Parent Motion to any number of Child Tracks. And that, right there, is what you need to do. You need to apply your Earthquake Motion to Parent Track Motion of a NEW, "empty", Control Track and have the 2, Logo+Video, tracks be controlled by that Parent Track.
The Parent/Child Controls are ALL in the Track Header.
NB:To have the Logo Start Off not shaking, you need to add a further NEW Track above the Parent Track during the descent of the Logo and smoothly fade out and Fade in the "shaky" Logo - which would now be on Track3.
So, here's the Layout:
Track1 - Stable descending Logo. This will be affective UNTIL you have it "land" in place.
Track2 - Parent Track Motion Control "Earthquake Track". This will give Earthquake shake.
└Track3 - Child Track (shaking) Logo. This will be affective WHEN you have had it "land" in place.
└Track4 - Child Track (shaking) Video
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