This can be done by following the steps below:
In Dimensions, select Costing tab.
Click Project. The Project tab appears.
From the Project list, select the project that requires a new Cost Centre.
In the ribbon, Record section, click Cost Cnt. The Cost Centre window appears.
Scroll down to the end of the list and select the empty line.
In the main ribbon, click Edit.
Enter the cost centre information needed, e.g. Code, Name, Analysis, etc.
Click Save. A new row appears in the Cost Centre list.