A couple of ways to enhance bands visually

The Chart:



The prop window:



Create another property window for the inside band.

Larger band must be above the smaller one in the chart objects list.

Another way to do it

Chart:

Property windows:


Howard stopped by and we asked which better for cpu:

13:24 @Ensign_HA: I think they are probably very similar in CPU, but if there is a speed advantage I would gamble on the alert doing the small space spread between 2 upper bands.