The Issue Hub Administration screen is a place for Sys Admins to toggle the appearance of tabs in the Issue Hub for all users.
You can find this page by signing into a Sys Admin account and navigating to Administration > System > System Settings > Issue Hub.
Simply toggle the switch in the Active column next to the name of the tab that you want to show or hide, and the setting will be applied.
Note that some fields cannot be toggled because the feature they rely on must be enabled first. Hover over any disabled switch on this screen to find out if you need to enable its feature first.