Go to menu item: edit, preferences, background-expansion
and enable it.
Sometimes it is necessary to close and reopen DrRacket to get the choices 
active.
Jos 

-----Original Message-----
From: racket-users@googlegroups.com [mailto:racket-users@googlegroups.com] On 
Behalf Of SR
Sent: sábado, 26 de noviembre de 2016 21:41
To: Racket Users
Subject: [racket-users] Re: Best alternate editor/IDE for someone who gets 
overwhelmed by complexity

Jos,  What is "background expansion" and how do I turn it on to see if it helps 
me?  I just did a search of help and didn't find the
term.  I did look around in view but don't see that as a choice.

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