Jay
Need to dive more!
@rsingler you are right that the momentary gradient factors are in "the tiny graphic". They are in the heat map as well. Please see the Subsurface user manual for an explanation: Search for "The Gas Pressure Bar Graph" and "heat map" in Subsurface Version 4 User Manual | Subsurface
A 2c feature request: Ability to graph GF99(Current) and SurfacingGF, and also to add CurrentGF to the Information Box that appears on the screen.