Visualize next task+dates in Client's grid view

Visualize next task+dates in Client's grid view

Hi. 
In the main Client's view, where I see a grid with all the clients, I want to see all the open task in the same way as I see them on the Lead's grid view
Please see the image below to check the way I want to see them:





Any tip about how have the same visualization on the Client's grid view? 

Thanks in advance.