The simplest would be to allow the tab to be moved wherever a person wanted to place it. Just being available via the projects drop-down would be fine by me though I would imagine some users would really like it always present.
Another option would be to make a third type of tab. Currently there is public and private. If I was able to disable a tab that would be best. That means I could have a tab I designed but is disabled so it doesn’t show up even for me except for in the dashboard configuration view. Then the “Project History” tab could be marked as disabled and it would not be shown except in the dashboard configuration view where I could either enable it or disable it. Since the tab would be listed with all the rest I could then reorder it however I would like. When the “Project History” is disabled then it would only be available via the project drop-down.
Thanks