[TxMt] Alt-up/down ... and some other navigation stuff

[Magnus Lie Hetland]

Is there any more in-depth explanation anywhere about what alt-up/ 
down really does? I understand there's some sort of columnar  
behavior, but when I use it in prose text, it seems to behave in a  
rather baffling manner to me... I've been looking for an equivalent  
to the (IMO very useful) ctrl-up/down functionality in Emacs (next  
paragraph, or, rather, next empty line, basically) and thought  
perhaps this might work somewhat like that -- and it seems to, if I  
move to the beginning of the line first. (OK, so the "next paragraph"  
functionality is a question of its own, I guess; is there something  
like it?)

And while I'm on the topic of navigation (and things I miss from  
Emacs ;-) -- if I accidentally press cmd-up or down, I completely  
lose my current location. Any way of "undoing" something like that?  
(In Emacs I used alt-x x or something like that, to switch position  
with the position before the navigation.) It's not always that I  
remember to set a bookmark before this sort of thing -- mainly  
because it tends to be accidental :->

-- 
Magnus Lie Hetland
http://hetland.org