Install Latte-Dock in KDE From PPA

Latte-Dock is a popular app launcher/dock for KDE's plasma desktop.

The dock can be customised heavily to suit your needs, including some handy built-in presets. Latte-dock is much more advanced than Plank dock with lots of configuration options and full plasma widgets support.

To install Latte-dock from PPA in Ubuntu 17.04, run the following commands:

sudo add-apt-repository ppa:rikmills/latte-dock
sudo apt update
sudo apt install latte-dock

Though the PPA states that these packages may be unstable, they are working absolutely fine on my computer. However, it goes without saying that install them at your own risk.