Tip 1103: Mix overlay and side by side calendars

This question came from a user with multiple calendars:

We use an outsourced tracking system that allows us to link an Outlook calendar to a website to show the tracking schedule. As such my "standard" Calendar view is my main calendar, and my tracking calendar overlaid on top of one another. If I need to open a 3rd calendar, it opens in the overlay view, which is cluttered with my stuff. When I go to un-overlay, I now have my calendar, my tracking calendar, and a colleague's calendar side by side. I close the tracking calendar to view the colleague's schedule, then have to reverse everything to get my main and my tracking calendar overlaid again.
Ideally, I'd like to be able to keep my main and tracking calendar overlaid, and have a third calendar open next to them both. Any way to make that happen?

Sure, you can make it happen. Use the arrow on each calendar tab to separate (or overlay) a calendar.

The Overlay button on the ribbon will also toggle the selected calendar between Overlay and side-by-side. Or you can right-click on the calendar in the navigation pane to toggle overlay on and off.