Sensible presets for subframe selector

[joelkuiper]

Now this might be somewhat outside the philosophy of Pixinsight, but I often find myself sorting and copy+pasting values from the (amazing!) new subframe selector into the tool provided here https://docs.google.com/spreadsheets/d/1d3V9TaMl8OGZU7gj48zyWU3PPUdfwk4Cj4sHgG6tZ8E/edit#gid=1110928655 to get some reasonable expressions. It would save me a ton of time if it were possible to express variables in the formulas (like min/max FWHM from the measured output) so I can save the generic formula, or even better yet ... have some of these expression preloaded as selectable defaults.

[RickS]

The SubframeSelector process already supports min, max and other variables computed from the data.  Try FWHMMin, FWHMMax, FWHMSigma for example.