You can show or hide tabs of the resource bar in NX. If you can not see the tabs of the resource bar, probably you hide these tabs.
To show or hide the Resource Bar tabs:
- Menu => View => Show Resource Bar
These tabs are used to change navigator of the resource bar as Part Navigator, Assembly Navigator, History, etc.…
Note: If you hide the Resource Bar Tabs, you can not see the settings pin icon on top of the resource bar tabs. Also, you can not change the part navigator to the assembly navigator.