Index: main/grid/display.lisp
===================================================================
--- main/grid/display.lisp	(revision main,62)
+++ main/grid/display.lisp	(revision main,67)
@@ -133,4 +133,5 @@
 
 (defun ensure-row-visible (grid row)
+  "Returns T when scrolling was necessary."
   (with-slots (data) grid
     (setf (row-scroll grid) (- row (header-rows data)))))