One to rule them all
Crowd now comes bundled with the Universal Plugin Manager (UPM), which allows you to manage apps (also known as add-ons or plugins) from within Crowd. You can use UPM to find, install, manage, and configure apps from Atlassian Marketplace, to which UPM connects. Alternatively, you can also point UPM to an app’s location on your computer.
If you’re a Crowd admin this way you can install, uninstall, enable, and disable plugins without leaving Crowd. If you’re not an admin, you can use UPM to request installing a plugin in Crowd from your admin. To learn more how to manager your apps with UPM, see Universal Plugin Manager documentation