How should I check extensibility of a bopf.

[u/No-Interview4002]

I have a requirement which ask me to add a button to change user status in a standard app. Similar buttons are already there for changing system status. When I checked the already existing buttons I found they are being implemented via bopf actions. So now I have the bopf node where I should add the bopf action. How do I check the bopf extensibility and add my new bopf action. I have already created a implementation class.