In the Eclipse menu, select Help -> Eclipse Marketplace. This will open the Eclipse Marketplace where you can search for the desired plugin and click on Install to install it.
In Eclipse, go to the menu bar and select Help -> Install New Software. This will open the Install window. Click on the Add button to add a plugin repository address. After entering the plugin repository address, click OK. Choose the plugins you want to install, click Next, and continue clicking Next until you reach Finish. The plugins will be successfully installed.
Manually download the plugin’s JAR file, then copy the JAR file to the dropins directory in Eclipse, and restart Eclipse to install the plugin.
Please refer to the official Eclipse documentation for specific instructions on installing plugins using the p2 director command line tool.
