How I can select only the first two totals

Hi, i have a problem with the total rows, i have a report that have 4 columns and i want only the first two totals, how can I change it, because when I select show totals, this shows me all the total for each column, i tried with slice but this doesnt work for more of two columns.
 
Can you help me please? exists another thing that i dont know.
 
Thanks
 
Regard.