Hi Prasannasrinivasan,

1. You can seperate a part of the column field you are using into a new column using prepare tab of DV.

2.Now apply tree-map visualization using that new column - by this you get treemap with a part u have seperated in above step.

(Approach-1) 3.Now you can add the actual column in tool tip , so as u hover over the tile , you will get correspinding info

or

(Approach-2) 3.Create a new visualization in the same canvas on actual column with "table chart type" & apply "use as filter" on the tree-map visualization created above in 2nd step.

so in this approach if u select the tile of a tree-map , the table visualization shows data of that particular value field.

Regards

Sakethvishnu D