Adam Katz created a script called Paste Multiple Keyframes 2 for Adobe After Effects. It presents a convenient approach to copy-pasting keyframes across multiple layers simultaneously. This tool increases productivity when users can select and paste keyframes to layers using a display or without a display, as long as the ft-Toolbar is compatible.

Adam Katz – Paste Multiple Keyframes 2 Plugin features

• Multi-Layer Keyframe Copy/Paste: The capability to copy keyframes from several layers at once is now possible due to this script. Keyframe pasting is also faster than it was before.
• No GUI or Interface Required: It is versatile by providing a GUI mode for a casual approach, but it can also run in a more utilitarian mode with no GUI for use with ft-Toolbar.
• Faster Keyframe Pasting While Copying: In cases where many keyframes need switching, a checkbox marked ‘do not copy’ will save time by skipping the easing/temporal/spatial properties.
• Even Without Interface, Easing is Kept: Using it without an interface, for example, with ft-Toolbar, all easing/temporal/spatial settings are pasted together with the keyframes.
• Current Compatibility Problems: The copying of particular keyframe values embedded in some plugins or effects is yet to be implemented.

Paste Multiple Keyframes 2 Documentation

Image 1: Paste Multiple loops

Image 2: Temporal spatial keyframes

Image 3: Effortlessly copy and paste keyframes across multiple layers to streamline your animation process.

Image 4: Create smooth, looping animations with ease by automatically repeating keyframes for a seamless effect.