Making a find button from sub-summary list
I made a simple birthday list view, i used sub-summary and "Sort" option by month. How can I make the button, so when I click on specific sub-summary field, in this case - month, it would show only that month and omit every other month from the list? I mean, if I click on "SEPTEMBER", as it is in the screen, so it would show only September birthdays and omit everything else.
i hereby attach a screenshot to get the better idea of what i'm talking about.