After opening the workbook, click "Refresh All".

It the following "Store Prompts with Workbook" is checked on the workbook, there will be no prompt window, otherwise, there is a prompt.

Click "Prompts for Workbook".

If the following "Merge Variables" is checked for the workbook beforehand,

The prompts for each data source will be merged. Otherwise, they will be listed one by one :

Click the small triangle under "Prompts", then select "Prompts for Data Source".
Then you will be see Prompts for only this data source.

Note 1 : Sometimes the data source crosstab area may be only one cell with text "Data removed. Refresh to update data to display" or "No application data". Then you need to click on the cell.

Note 2 : If "Merge Variables" is checked for the workbook, you will not be able to select "Prompts for Data source" because you can only refresh the whole workbook in such a case.

