Show Remarks on graph lines auto

Hi Experts !
How to show the remarks on the chart SSRS,when I click to the data trend line in the chart of any data point show me the remarks of that date?

What are these remarks you are talking aboit?

Sorry i mean Remarks are the comments .e.g what activity happened for the drop and increase of line in the chart required to show on the data trend line.
Hope i understand! Some thing like below

Is the comments data available to the report. Please post sample data on the form of ddl dml