> My question should more correctly phrased as "how to select chapters > in labs".
Hi Chen It's unfortunate that this option has been left out of J7. The only short term remedy I see would be to use J version 6. Only a few labs use this functionality, mostly those written by Ken Iverson himself, the creator of J. ~ Gilles ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm