Install ukui-menu by entering the following commands in the terminal:
sudo apt update sudo apt install ukui-menu
Description:
Advanced UKUI menu
An advanced menu for UKUI. Supports filtering, favorites, easy-uninstallation, autosession, and many other features. . This menu originated in the Linux Mint distribution and has been ported to other distros that ship the UKUI Desktop Environment.
Homepage: http://www.ukui.org/
Version: 1.1.3-0ubuntu1
Section: universe/x11