Intervention Analysis with several different events

[Maze]

I have a daily data of visitors and 3 different events ( exhibition, article, tv). I would like to determine how those events impact visitors flow.
Several continue for some days and few have pretty short intervals between, 2-3-4. Graphical analysis showed that events don't have longer impact, they are more like impulses.
In Google I've found only about intervention analysis with just one event. Please share with your thoughts and how could it be approached. I'm very new to it, so I'd highly appreciate your help.

My thoughts: something abot intervention detection? But I didn't manage to find more info on this.

I'm working with Eviews 7.

Thanks in advance.