show sidebar

The new iCal does not show a source panel on the left side. ICal 4 did; but iCal 5 does not. The different calendar groups are only visible from a pull-down menu. Basicly, I want the different calendar layers to stay visible all the time on a left hand column, similar to what Finder has for different folders and similar to what iPhoto has for different collections.

Any way to make that happen?

Thanks!