I have activated plugging in Beta Settings... now how do I link a plug-in?

I have activated plugging in Beta Settings… now how do I link a plug-in? I can’t see any button to link to plugging. I am worried the AIRPRM is getting in the way of chatGPT functionality.

You can switch to GPT-4 Plugins model by using the model selector or by navigating to:
https://chat.openai.com/?model=gpt-4-plugins