WISH : Data Tables ; allow multiple row selection by user

I’m getting somewhere with my blocks properties visualization/editing tool :

What’s really spoiling the party is that the user can only assign properties either :
-To the selected row in the table
-To all the rows (but that’s only by virtue of using data contained in GH components)

I wish that the “Data Table” component’s listener would output the indices of the selected rows, as the data can be easily retrieved anyway :

This wish could be extended to the “ListBox” component.