Manual installation
1. In the File menu choose Settings
If you are using MacOS, in the IntelliJ menu choose Preferences

2. Go to Plugins/Marketplace tab, Search "Tabnine" and click Install

3. Restart IntelliJ
4. Once installed and running, you can launch the Hub by clicking on Tabnine in the IDE status bar. You can sign in to your account using the Hub. Click 'Register/sign in' in the top right corner of Tabnine Hub.

That's it! You're connected!
5. If everything went smoothly, You will see 'tabnine pro' in the status bar.