Comparing plank to other dockers:
https://www.ghacks.net/2017/05/17/a-com ... lications/
http://www.makeuseof.com/tag/8-power-do ... x-machine/
https://www.slant.co/versus/11681/11682/~docky_vs_plank
Also there is a dock specifically for kde called latte:
https://store.kde.org/p/1169519/
Download:
https://github.com/psifidotos/Latte-Doc ... ANGELOG.md
Here is plank for porteus 4.0 xfce4:
Download for plank-DE-x86_64-2017-12-22.xzm
https://www.mediafire.com/?x5ay5815ramo0
Instructions:
Place plank-DE-x86_64-2017-12-22.xzm in /porteus/modules
Extract rootcopy-for-plank.xzm (right-click in thunar - extract), backup your /porteus/rootcopy (if it contains anything), replace it by rootcopy-for-plank folder (and rename it rootcopy).
Reboot
Open /usr/share/applications and drop some application, xfce4-terminal or thunar on the plank dock and there you go. If you want to keep the application in the dock right click on it once in the dock and select keep in dock. You can also open an application from the xfce4 menu. Once opened it will appear in the plank dock.
To keep changes or have persistence plank has to be started from /etc/xdg/:
openbox:
/etc/xdg/openbox/autostart file
xfce4
/etc/xdg/autostart folder
Copy /usr/share/applications/plank or plank.desktop to /etc/xdg/autostart folder
Installing applications in the dock.
Installing applications in the dock is easy just open these applications or drag a .desktop file to the dock. The application should be available at next bootup when right clicking application shows that it is selected to be kept in the dock. Many of these .desktop files are located in /usr/share/applications, but not exclusively. With midnight commander or mc in command line, make a search on *.desktop to find some more. These last ones might not all work and might need to be transferred to the /usr/share/applications.
Mouse control for plank dock:
left click will start the application
right click will offer a menu of actions possible that specific application
ctrl+left click will start a second instance of the application
ctrl+right click will open the setting menu for plank
ctrl+right click > preferences will open the settings for plank, there are interesting docklets.
Files that are needed for plank to be functional are in the following folders:
/usr/share/plank The themes for the dock
/usr/bin/plank The plank command line
/usr/share/doc/plank
/usr/lib64/plank/docklets The docklets
~/home/your-user-name/.cache/plank Empty
~/home/your-user-name/.config/plank/dock1/launchers Info relative to the items added to the dock
/etc/skel/.config/plank/dock1/launchers/ Empty, but could include some basic application for the initial launching of plank, depends on your taste.

Plank-themer (not so much an improvement, not necessary, aesthetics, changes the base of the dock, some videos provided):
http://rhoconlinux.github.io/plank-themer/index.html
https://www.youtube.com/watch?v=_1cYCQ7QwRo **does not work**
Make sure that you have xterm and follow the command line.
Questions and answers about plank:
https://answers.launchpad.net/plank