🚀 go-pugleaf

I sometimes want to write a file with text that looks like this:

In the left-hand thirty-odd		In the right-hand thirty-odd     
columns is some text that says		columns is some parallel text.   
whatever I want to say.  It just	Usually, it says the same thing  
goes on, perhaps over several		in another language.  There is no
paragraphs, until it says		need for the words or the        
everything I want to say.		sentences to line up or anything.
					Each column begins and ends on   
       					it's own.

I know how to make a file look like this, by writing the two sections
seperately, each beginning at the left margin, and then doing a
kill-rectangle and a yank-rectangle to put the right-hand half where I
want it.  But, if I want to change anything after that, I'm stuck.

What I'm looking for is a way to edit just the left-hand or right-hand
columns of text, while the other half stays put.  Does anybody know of a
way to do this in Emacs?

--
Philip Brewer                   pbrewer@urbana.mcd.mot.com
Motorola Urbana Design Center   ...!uiucuxc!udc!pbrewer
Tero unua!  Ne kompromisu pri la defendo de patrintero.