I'm unable to customize the Help Center page of the Service Desk.

[Therigy Devops]

Please provide instructions on how to customize the Help Desk page and it's attributes for the Service Desk tool. 

[Jack Brickey]

there are other threads on this in the Community. You have limited capabilities w/o an addon.

cloud - https://confluence.atlassian.com/get-started-with-jira-service-desk/customize-your-service-desk-channels-917968325.html

server - https://confluence.atlassian.com/servicedeskserver/customize-your-service-desk-channels-939926177.html

but search the community for more info.

[Meg Holbrook]

Unfortunately the cost of Cloud is not having a robust customization system like on Server. For the most part we make do, hopefully in the future we have expanded capabilities!

[Victor Mutambuki]

Therigy,

First and foremost, are you a JIRA admin in the project? If not, you won't be able to brand the Help Center. 

If you're the Service Admin and not a JIRA admin, then you can only brand your specific customer portal.

Victor