To integrate Jira with Git Lab, do I have to go project by project?

[laralg]

Hello!
I am integrating Jira with Git Lab. In the documentation it says that I need to integrate inside Git Lab project -> settings -> integrations.
I have more than 300 projects so I was wondering if someone has done it  before and can tell me if I have to to this project by project or there is some way I can integrate the whole platform with Jira at the same time. I saw that there is a Service Template that I can fill with jira Information but the integration only seems to work when I do it with just one project.
Thanks!