1)In the nav bar, search for System definition --> Modules and select it. 
2)In the list, filter the table(example: Incident) and the module title(example: All) where you want to group the list and open it 
3)Under the Link Type tab, select URL (from Arguments:) in the Link Type field 
4)In the Arguments field, paste the below value 

incident_list.do?sysparm_query=GROUPBYstate&sysparm_first_row=1&sysparm_view= 

This will group the incident table list by State for 'Incident --> All' module