Index: bindings.doc
==================================================================
--- bindings.doc
+++ bindings.doc
@@ -211,10 +211,13 @@
   so there are false positives). However, you can set this deliberately by
   yourself, in case you know that the solution remains valid; if you do
   set it by yourself just before saving, it will use your value rather
   than setting it automatically.
 
+'mm' <class> <image> <misc1> <misc2> <misc3> <dir>
+  Modify a MRU. Any values specified as null means no change.
+
 'mR' <number>
   Select a relative MRU. Negative numbers move up the list, and positive
   numbers move down the list.
 
 'mr' <number>

Index: default.heromeshrc
==================================================================
--- default.heromeshrc
+++ default.heromeshrc
@@ -179,10 +179,11 @@
 ?.editClick.right: delete from objects where x=$X and y=$Y and up is null;
 ?.editClick.ctrl.right: select 'am',class,image,misc1,misc2,misc3,dir from objects where x=$X and y=$Y and up is null;
 ?.editClick.shift.left: ^<
 ?.editClick.shift.middle: values('^Z',null),('^<',xy($X,$Y));
 ?.editClick.shift.right: ^>
+?.editClick.alt.middle: select 'mm',null,null,null,$X,$Y,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;

Index: edit.c
==================================================================
--- edit.c
+++ edit.c
@@ -1946,10 +1946,22 @@
     case 'lv': // Set level version
       discard_solution();
       level_version=number;
       level_changed=0;
       return 0;
+    case 'mm': // Modify MRU
+      if(curmru>=MRUCOUNT) return prev;
+      if(argc>1 && sqlite3_column_type(args,1)!=SQLITE_NULL) {
+        x=sqlite3_column_int(args,1)&0x3FFF;
+        if(x) mru[curmru].class=x;
+      }
+      if(argc>2 && sqlite3_column_type(args,2)!=SQLITE_NULL) mru[curmru].img=sqlite3_column_int(args,2)&0xFF;
+      if(argc>3 && sqlite3_column_type(args,3)!=SQLITE_NULL) mru[curmru].misc1=UVALUE(sqlite3_column_int64(args,3),sqlite3_column_int64(args,3)>>32);
+      if(argc>4 && sqlite3_column_type(args,4)!=SQLITE_NULL) mru[curmru].misc2=UVALUE(sqlite3_column_int64(args,4),sqlite3_column_int64(args,4)>>32);
+      if(argc>5 && sqlite3_column_type(args,5)!=SQLITE_NULL) mru[curmru].misc3=UVALUE(sqlite3_column_int64(args,5),sqlite3_column_int64(args,5)>>32);
+      if(argc>6 && sqlite3_column_type(args,6)!=SQLITE_NULL) mru[curmru].dir=sqlite3_column_int64(args,6)&7;
+      return prev;
     case 'mR': // Select MRU relative
       number+=curmru;
       // fall through
     case 'mr': // Select MRU absolute
       if(number>=0 && number<MRUCOUNT) curmru=number;

Index: edit.doc
==================================================================
--- edit.doc
+++ edit.doc
@@ -249,10 +249,11 @@
 
   LEFT          Add object
   CTRL+LEFT     Edit Misc/Dir of object
   ALT+LEFT      Add object (allow duplicate)
   SHIFT+LEFT    Set top corner of selection rectangle
+  ALT+MIDDLE    Set Misc2/Misc3 of MRU to X/Y
   SHIFT+MIDDLE  Make 1x1 selection rectangle
   RIGHT         Delete object
   CTRL+RIGHT    Copy object to MRU
   SHIFT+RIGHT   Set bottom corner of selection rectangle