how to use it as a site calendar?

Hi. I'm trying to use this plugin as a side calendar, but maybe i missunderstood the functionality.

What I would like to do is to let the administrators of my website to input new events that all the  members of the site can read. Is it possible to do it? If so, how? With the administrator account, I go under "tools" and I select the event calendar. How to let the other user reading the events I input?

Thanks in advance!