Changing Raise a Request Link in Project sidebar?

[Devin DiNapoli]

I can't seem to find a way to change the link that is associated with the shown Link in the sidebar of a project:

I'm looking in the project settings and am unable to find a way to change this link that brings us to our service desk portal. I'm beginning to wonder if this is something Atlassian will need to change, since they MIGHT have set this up for us. 

[Jack Brickey]

You cannot modify that link just as you cannot modify knowledge base customer channels etc.