Welcome back Ken
Hope your personal time was just what you needed.
I have a request I'd like to be considered if you all don't mind......
If you look at the App 'Astro Photography Tool' (which I used before SGP), it has what it calls a darkness clock on the interface. Double clicking it puts up a box, based on the users coordinates on the earth, it shows pretty much the real time Sunset/sunrise, and all the relevant twilight times we would all be interested in. SGP could have a optional module for the interface which shows a graphical representation of this which could also have options in SGP's 'Options' for starting and stopping an imaging session based on it's status etc One really handy thing here is it shows when the moon rises too.
Regards
Paul