Index: popup.txt
===================================================================
--- popup.txt	(revision 8989)
+++ popup.txt	(revision 8990)
@@ -21,9 +21,17 @@
 		Group with role=ROLE, ROLE must be one of the cschem-defined group roles,
 		e.g. symbol, terminal, etc.
 
+	- /popups/sheet
+		Clicked on an empty part of the drawing area of a sheet
 
+	- /popups/symbol-as-sheet
+		Clicked on an empty part of the drawing area of a sheet when in symbol
+		editing mode
 
+	- popups/none
+		None of the above (e.g. clicked outside of drawing area)
 
 
 
 
+