The Smart Sidebar (still called Smart Sidebar under ColorOS 6) is a sidebar that can be opened by simply wiping from the right side of the screen. In the Smart Sidebar of the Oppo-Smartphone you can select app shortcuts, quick tools (screenshot, screenshot etc.) and quick apps (floating apps).

By default, the Smart Sidebar is disabled on the Oppo device and can be enabled in the settings for Convenience Tools. Unfortunately, ColorOS does not currently offer any other options for personalization.

Android 10 (ColorOS 7.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Convenience tools
Step 3:  Tap on  Smart Sidebar
Step 4:  Enable or Disable  Smart Sidebar
  1. Open the Settings
  2. Tap on Convenience tools
  3. Tap on Smart Sidebar
  4. Enable or Disable Smart Sidebar

Oppo Instructions