Please follow the below steps to create data in the global datasheet.
1) select the cell in test data which you want to create it as Global data and in the test data panel, find the button (in globe shape) and click it
3) Give a name for the global data with the prefix "#" for example #gd, the new Global data created
4) Navigate to Global Data tab and see the new entry created
5) In the test case use the test data which needs to refer it from Global data
Thanks
CITS Support team