How to Install New KDE Widgets
Sometimes, the stock Widgets supplied with your Linux Distro do not contain what you want - but fear not! KDE allows you to download new third-party Widgets from the internet (-or create them yourself).
The screenshots for this article were taken from the KDE Plasma Desktop of Kubuntu 12.04 - but all KDE Distros should look the same.
If, when adding a KDE Widget, you cannot find what you want from the scrollable Widget Centre list, you can install third-party Widgets by clicking on the "Get New Widgets" button:
You will then see two options displayed:
Download New Plasma Widgets: this is the easiest option, allowing you to browse the official online repository of KDE Widgets
Install Widget from Local File: this option allows you to install a Widget that you previously download from the Web (-e.g. from Google Gadgets)
For this example, we will click on the former; this will display a dialogue box containing a scrollable list of third-party Widgets for download:
Once you locate a suitable Widget, just click on the "Install" button (-the button should then change to an "Uninstall" one):
To add the new Widget to the Desktop, go back to the scrollable Widget Centre list and click and drag it to the required position before releasing the mouse button:
You should then see the new Widget on the Desktop: