Date: Tue, 20 Jun 89 09:55 CDT From: ACKLEY@KBS2.TAMU.EDU (Keith Ackley) I have found the function OPEN-INTERVAL-STREAM which appears to be what I want. But how do you specify the region that has been marked by the user. (zwei:region (start end) ; Get the region (zwei:with-interval-stream (stream start end t) ; bind a stream <body>)) ; do the work barmar