Index: openacs-4/packages/proctoring-support/lib/proctoring-display.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/proctoring-support/lib/proctoring-display.tcl,v
diff -u -r1.1.2.10 -r1.1.2.11
--- openacs-4/packages/proctoring-support/lib/proctoring-display.tcl	15 Feb 2022 11:11:25 -0000	1.1.2.10
+++ openacs-4/packages/proctoring-support/lib/proctoring-display.tcl	15 Feb 2022 11:17:01 -0000	1.1.2.11
@@ -114,6 +114,14 @@
 
         set back_url $base_url
 
+        # Desktop and camera pictures are produced at the same time,
+        # even if they might not have the same timestamp, so they are
+        # put together in a single row, based on the order in which
+        # they have arrived (e.g. first camera picture together with
+        # first desktop picture and so on). The audio files are put in
+        # a row of their own because they are produced, if ever, at
+        # their own pace. The rows so produced are then sorted by
+        # timestamp, so that the "events" are chronologically sorted.
         db_multirow events get_artifacts {
             select camera.file as camera_url,
                    desktop.file as desktop_url,