Hi, yes, your question has been asked before. As a matter of fact, our developers are working on a feature showing the events directly in the calendar. This is our draft of what it should look like. We are planning to release this feature this year (2016).
Here the link to the Atlassian Marketplace: https://marketplace.atlassian.com/plugins/net.seibertmedia.plugin.confluence.event-manager/server/overview