One of the many Adaptable Events is SelectionChanged.
This gives full details of which cells and rows are selected, allowing you to perform any subsequent activity as required.
The row information contains not just the row name and data but also whether its group, opened, master / child etc.
In this demo we have set rowSelection in ag-Grid to 'multiple' in order to be able to select multiple rows, and both group headers and grouped rows.
We are listening to AdapTable SelectionChanged event and printing out the results to the console. Open the console to see the output each time cell or row selection changes.