The following only applies to the old multisite. If you own a subsite on the new multisite, there will be no Plugin-Section, because the few Plugins are all activated beforehand.
In the old multisite: Dashboard → JGU Tools → Plugins you find active, deactivated and networkwide Plugins in separate Lists.
Help yourself to switch plugins on or off.
Activate / Aktivieren you switch the plugin on, with Deactivate /Deaktivieren the Plugin is not active on your site.
Documentation / Guides to use the plugin Shortcodes
You find the Documentation via Dashboard → JGU Tools → Plugins . Simply paste the shortcode example on your page after activating the plugin should give you a rough idea and a quick start to using the plugin capabilities.
Why should I switch plugins off?
Every plugin consumes time with every page view. The more plugins are switched on, the longer does it take to load your page. Knowing this you will be conservative and only switch on plugins you are actually using.
What happens to the shortcodes in the pages, if a plugin is switched off?
If you inadvertently switch off a plugin but there are still pages using it via a shortcode, the shortcodes is not lost. It is simply visible on the page.
Networkwide Plugins
These are plugins that are so widely used that we activated them.
The Plugin cannot be (de-)activated
This plugin can not be (de-)activated without administrative activities. That means, we have to change some configuration to let the Plugin function properly. Send us an email.
Why can't I simply add my favourite third-party plugin?
You can only choose from this list. It is not possible to add any old plugin from the WordPress community. You are operating in a multisite environment that needs to be finely tuned. Foreign plugins may collide with each other.