The alphabetical sort (Ctrl+Alt+S) sorts by upper case and then lowercase. Does anyone know if this is a bug or feature? And if it's a feature, what is the reason for this?
It looks like the sort lines command referenced in the Edit menu (CTRL+ALT+S) is case-sensitive. There is an "insensitive" search available which is CTRL+ALT+SHIFT+A
If you use that type of sort a lot you may want to remap it to a key combination that doesn't tie your fingers in knots when you try to use it!!! Possibly just swap them? (Tools > Options > Keyboard shortcuts).
EDIT: Apologies. Just realised that you need to install the Suitcase plugin to get this command as an option.
Thank you for information regarding the command reference (it's good to know that it is a feature and not a bug) as well as the additional plugin necessary to create a workaround, I'll definitely remap if I install the plugin - I don't have much use for case sensitive sorting.