I forgot to include the autofit linear regression channel.
As this indicator is a combination of all the different stuff I use in the course of a day while trading, I wanted to be sure to include all of the tools I will reference.
This feature will autofit a linear reg channel extended by 3 standard deviations (you can see in the updated chart that SPY is approaching the top of the channel at 3 standard deviations).
It will offset based on the start of the trend and extend based on the current strongest trend.