Get your hands on a Summer ’20 org and you can try this new version of Quick Choice, which comes with this customized property editor:
The functionality in this version matches version 1.4.
To learn about how to build Custom Property Editors and add them to either Flow Screen Components or Invocable Actions, click here.
Check this page for the most recent install link.
Version 2.0 Unmanaged Requires Summer ’20