---
title: "A motion system"
description: "Lesson 4.5 of Creator Terminal's lesson films (Motion principles): Give a product one motion language: shared timing, easing and a spring, driven by one control."
canonical: "https://terminal.lottiefiles.com/motion-system/"
last_updated: 2026-10-27
---

# A motion system

> Lesson 4.5 of Creator Terminal's lesson films (Motion principles): Give a product one motion language: shared timing, easing and a spring, driven by one control.

- The film (1:44): https://terminal.lottiefiles.com/media/4.5-motion-system/9b5886c605fb/4.5-motion-system.mp4
- Vertical cut: https://terminal.lottiefiles.com/media/4.5-motion-system/578def647722/4.5-motion-system-vertical.mp4
- Captions: https://terminal.lottiefiles.com/media/4.5-motion-system/53a143454552/4.5-motion-system.vtt
- The page: https://terminal.lottiefiles.com/motion-system/

## In this lesson

### Shared rules (0:05)

These three button shapes represent one product. Choose a few durations and eases, and reuse them. Similar actions should feel related.

### One control (0:16)

Let's find the shared control. Click Controls. Here in Creator Terminal, all three scales already follow one expression control, a named slider called Response.

### Shared duration (0:28)

Let's make every button respond faster. Drag its last key left along the score, to frame twelve. That's four tenths of a second for all three, without retiming separate layers.

### Shared ease (0:41)

Let's soften every arrival together. Click the first key. Choose out, an ease out, slowing into place. One curve shapes all three arrivals.

### Shared spring (0:53)

Let's add a soft release after touch. Press Escape. Click Response's value, then press return to choose it. Add spring. Click More to see its bounce and settle settings, shared by every button.

### One response (1:08)

Let's see how that shared response feels. Press zero, then space. Imagine releasing these buttons. Watch the matching size change and restrained settling. Press space to pause.

### Choose then reuse (1:22)

Agree on a few rules, then reuse them. Springs suit touch; quieter transitions can simply ease. Keep shared decisions together, so the team changes them together.