return in switch, back in switch

I have switch, I wanna returned in switch

c=menu('Výber dát','preddefinovane');

switch c
    case 1
        subori=menu('Vyber subor','subor1','subor2','subor3')

          switch subori
              case 1
              MON = xlsread('subor1.xlsx')

              case 2
                MON = xlsread('subor2.xlsx')

              case 3
                MON = xlsread('subor3.xlsx')

              otherwise
             error('chybny vstup')
              end

end

I want more button than back in switch

Thanks.

[Arturo Moncada-Torres]

Could you please state your question more clearly? Honestly I didn't get it :-\ .

[Tomas]

I want one more button to return at the end I need to use while loop

Answer 1

[Walter Roberson]

case 4
  return

??