Sum_daily_nb_uniq_visitors

QUESTION: Is it possible to use the same event name for more than one category of event. For example, may a motomo developer write:

_paq.push([‘trackEvent’, ‘Call Reporting API’, ‘Click’, ‘Your Data and You’]);
_paq.push([‘trackEvent’, ‘Challenge’, ‘Click’, ‘Your Data and You’]);

QUESTION; If the above is possible, and the same unique visitor clicks on both events, would both or only one of the clicks be registered as an action for the named event by that visitor. Specifically, I am referring to the sum_daily_nb_uniq_visitors statistic for named events.

Roddy