How to graph a shaded area like you get with predict, but without using the predict command?

[pwmcity]

Just wondering if anyone knows how to graph a shaded band like you get with the predict command, but without running the predict command?

[pwmcity · Accepted solution]

Answered my own question..

append this after timechart

...
| eval _lower="1"
| eval _predicted="2"
| eval _upper="3"