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>* alt + shift + a : insert mode at the end of current line

Is that different from just Shift-a or capital A, which puts you into append mode at the end of the current line (no matter where you are on the line when you press it)?

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yep, it does a 'A' in normal mode, after leaving the insert mode (thanks to alt). The different thing is that you do it (alt+shift+a) in insert mode. So the equivalent would be `ESC, A`.

Then I guess that the Alt key generates an ESC char (ASCII code 27 [1]). Seems to tie in with the fact that Emacs docs say that you can use either Alt or ESC for the Meta key - which is used a lot in Emacs commands (IIRC - I am not an Emacs user, just had tried it out earlier and think I remember reading read that).

https://en.wikipedia.org/wiki/Esc_key

I see. thanks for sharing!

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