Hi @Ali Ahad
Do you mean that you want to jump to the corresponding subreport when you click on the month?
Then you can click "Text Box Properties->Action->go to report", and then fill in the expression in specify a report.
It is really necessary to use the Switch function. The following is an example of the expression I wrote. It means that when the month is 1, jump to the chart report of the corresponding path, and when the month is 2, jump to the image report of the corresponding path. You More conditions can be added.
I set the font of the text box to be blue and underlined to distinguish it. Preview, when I click February, it jumps to another report.
For detailed usage of the Switch function, you can refer to this link: https://learn.microsoft.com/en-us/sql/reporting-services/report-design/expression-examples-report-builder-and-ssrs?view=sql-server-ver16#DecisionFunctions.
If the answer is helpful, please click "Accept Answer" and upvote it. If you have any questions, please feel free to let me know.
Best regards,
Aniya