Index: default.heromeshrc
==================================================================
--- default.heromeshrc
+++ default.heromeshrc
@@ -163,10 +163,12 @@
 ?.editClick.ctrl.right: select 'am',class,image,misc1,misc2,misc3,dir from objects where x=$X and y=$Y and up is null;
 
 ! Global key bindings
 ?.?.kp_minus: select 'go',-(level()-1) where level()>1;
 ?.?.kp_plus: select 'go',-(level()+1) where level()<max_level();
+?.?.shift.kp_minus: select 'go',-1;
+?.?.shift.kp_plus: select 'go',-max_level();
 ?.?.ctrl.G: select 'go',-:Go_To_Level where :Go_To_Level=cast(:Go_To_Level as int) and cast(:Go_To_Level as int)>0;
 ?.?.ctrl.Q: ^Q
 ?.?.ctrl.S: ^S
 ?.?.ctrl.T: ^T
 ?.?.shift.ctrl.M: select ':s';

Index: sql.doc
==================================================================
--- sql.doc
+++ sql.doc
@@ -71,10 +71,14 @@
 
 LOAD_LEVEL(level_id)
   Only valid when Free Hero Mesh is invoked with the -x switch. Loads
   the level with the specified ID number.
 
+MAX_LEVEL()
+  The number of levels in this puzzle set (equal to the maximum valid
+  level order number).
+
 MVALUE(number)
   Makes a game value of type 'message'.
 
 MODSTATE()
   The SDL keyboard modifier state.