Thank you, TorQueMoD. Your method of scaling keys is VERY COOL. I was also looking for an additional feature to anchor some keys so they do not slide when the keys are scaled. Epic offered another solution.
This is what they recommended if we want to anchor and scale keys.
- Select the keys in Sequencer.

- Open the Curve Editor:
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Click the “Re-Time tool”

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This will create green bars that will form a lattice:
You can click the green X to delete a lattice point (green bar)
You can also double click anywhere to create a lattice point (green bar) where you want.
- Then grab a green bar and LMB drag. The green bars will anchor the keys and prevent the outside keys from sliding while scaling.

You can also double click in the middle of the two green bars to create a third green bar to scale keys with.



