I am creating a new project that should act like a troubleshooting knowledge base and I keep encountering odd and frustrating issues.
I suspect much of this is due to my lack of understanding of Jira administration/configuration, so please be patient with me. 
I'm using the next-gen project.
Question (1 of many):
The ellipsis under the task title has the option, "Add more" (add more Jira plug-ins) - how do I remove this? The users of this project should not see this non-relevant option.

Can anyone recommend Jira training that covers building next-gen Jira projects. Or should I revert back to a traditional Jira project?
Thank you,
Shawn