The first tabs are named “OEE & Downtime” and "My Dashboard" and these are created by default for all users. The number of tabs is not limited.
To add tabs, click on the plus icon next to the last tab:

Enter a name for the tab (max 25 characters) and click "Save":

Click on the edit icon in the top right corner:

Click on the dotted icon after the tab name and select “Rename”:

Change the name and click "Save":

After finishing the edits, click “Close” in the top right corner:

Click on the edit icon in the top right corner:

Drag the tabs from the dotted icon in front of the tab name:

After finishing, click “Close” in the top right corner:

Click on the edit icon in the top right corner:

Click on the dotted icon after the tab name:
Select “Duplicate”, name the tab and click “Save”:

After finishing the edits and additions, click “Close” in the top right corner:
