I create, modify, arrange, etc. workspace launchers successfully , mostly by command line editing. I use KDE4 on PCLINUXOS. Something I did during "Configure Your Desktop" inadvertently rearranged all workspace icons alphabetically. I can fix that. But it also moved the Kickoff icon from the panel to the workspace, covering a launcher. Right or left click on the Kickoff icon work, but I recognize no options to move it. I would be happy with a solution that gave me a way to change Kickoff to a launcher.

You could try to drag the widget back to the panel, like this:
https://userbase.kde.org/images.userbas ... nel-45.gif

Or you could try to remove the desktop widget and add a new Kickoff widget to the panel.

Full list of animations here: https://userbase.kde.org/Plasma/HowTo