You can bookmark events throughout a conference website and then quickly get back to them from the My Bookmarks page. Here are the links for the My Agenda (My Calendar) page for each website.
To bookmark an event click on the bookmark symbol highlighted in this example page.
If the bookmark symbol is solid green then this event is bookmarked. If the symbol is an outline or grey then the event is not bookmarked. Click on the bookmark symbol to toggle this state.