This is an example implementation of a command palette for the neos user-interface.
git clone https://github.com/mstruebing/MStruebing.CommandPalette.git <NEOS_ROOT>/Packages/Application/MStruebing.CommandPalette
cd <NEOS_ROOT>/Packages/Application/MStruebing.CommandPalette/ && ./flow package:rescan
Then login into the backend and press ctrl + /
.