It sounds like you're looking to create a custom feature for Sims 4 related to an animation for a specific mod or content related to Sims 4.
Creating a Custom Animation Feature for Sims 4
To create a feature like this, you'll need to use the Sims 4 Studio or a similar tool that allows you to create and edit Sims 4 mods and custom content.
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Launch Sims 4 Studio: Open Sims 4 Studio and ensure it's updated to the latest version.
Create a New Project: Choose to create a new mod or animation project. The software will guide you through setting up your project.
Import Base Game Assets: If necessary, import the base game's related animations or interactions to use as a reference or base.