Your picture link is precisely how it's done. Yes, the background is on track 1 and the insert is overlaid on a higher track - usually track 2.
There are no set parameters to achieve the effect. Adjust as you see fit.
Begin with the red cursor in the Motion effects window at the far left.
Move the Scale slider so the insert is very small and centered on the calendar. Click the green + sign to... 
Now move the cursor to the far right and adjust Scale to fill the screen. Another keyframe should be automatically set.
Each keyframe (square) can be dragged. Other motions, such as rotate, horizontal/vertical position can be applied in the same manner.
If you make a mistake click <ctrl-Z> to go back, step-by-step.
Save Project File AS routinely, giving it a unique # or name, so as not to overwrite prior saves. Using Save Project Files (no AS) will overwrite. From the HOME tab, the AS choice is available by clicking the caret to the right of the Save Project button on the toolbar. That way you're protected, and shouldn't lose anything.
