Index: src/nano.h
===================================================================
--- src/nano.h	(revision 5426)
+++ src/nano.h	(working copy)
@@ -177,6 +177,10 @@
 } append_type;
 
 typedef enum {
+    NOMARK, SOFTMARK, HARDMARK
+} mark_type;
+
+typedef enum {
     UPWARD, DOWNWARD
 } scroll_dir;
 
@@ -391,6 +395,8 @@
 	/* The file's line where the mark is, if any. */
     size_t mark_begin_x;
 	/* The file's mark's x-coordinate position, if any. */
+    mark_type kind_of_mark;
+	/* Whether this is a soft or a hard mark. */
     file_format fmt;
 	/* The file's format. */
     struct stat *current_stat;
Index: src/global.c
===================================================================
--- src/global.c	(revision 5426)
+++ src/global.c	(working copy)
@@ -38,6 +38,8 @@
 	/* Whether the current keystroke is a Meta key. */
 bool func_key;
 	/* Whether the current keystroke is an extended keypad value. */
+bool shift_held;
+	/* Whether Shift was being held together with a movement key. */
 bool focusing = FALSE;
 	/* Whether an update of the edit window should center the cursor. */
 
Index: src/files.c
===================================================================
--- src/files.c	(revision 5426)
+++ src/files.c	(working copy)
@@ -65,6 +65,7 @@
     openfile->mark_set = FALSE;
     openfile->mark_begin = NULL;
     openfile->mark_begin_x = 0;
+    openfile->kind_of_mark = NOMARK;
 
     openfile->fmt = NIX_FILE;
 
Index: src/proto.h
===================================================================
--- src/proto.h	(revision 5426)
+++ src/proto.h	(working copy)
@@ -33,6 +33,8 @@
 
 extern bool meta_key;
 extern bool func_key;
+extern bool shift_held;
+
 extern bool focusing;
 
 #ifndef DISABLE_WRAPJUSTIFY
Index: src/winio.c
===================================================================
--- src/winio.c	(revision 5426)
+++ src/winio.c	(working copy)
@@ -333,6 +333,7 @@
 
     meta_key = FALSE;
     func_key = FALSE;
+    shift_held = FALSE;
 
     /* Read in a character. */
     if (nodelay_mode) {
@@ -502,37 +503,42 @@
 		retval = ISSET(REBIND_DELETE) ? sc_seq_or(do_delete, 0) :
 			sc_seq_or(do_backspace, 0);
 		break;
-	    case KEY_DOWN:
 #ifdef KEY_SDOWN
 	    /* ncurses and Slang don't support KEY_SDOWN. */
 	    case KEY_SDOWN:
+		shift_held = TRUE;
 #endif
+	    case KEY_DOWN:
 		retval = sc_seq_or(do_down_void, *kbinput);
 		break;
-	    case KEY_UP:
 #ifdef KEY_SUP
 	    /* ncurses and Slang don't support KEY_SUP. */
 	    case KEY_SUP:
+		shift_held = TRUE;
 #endif
+	    case KEY_UP:
 		retval = sc_seq_or(do_up_void, *kbinput);
 		break;
-	    case KEY_LEFT:
 #ifdef KEY_SLEFT
 	    /* Slang doesn't support KEY_SLEFT. */
 	    case KEY_SLEFT:
+		shift_held = TRUE;
 #endif
+	    case KEY_LEFT:
 		retval = sc_seq_or(do_left, *kbinput);
 		break;
-	    case KEY_RIGHT:
 #ifdef KEY_SRIGHT
 	    /* Slang doesn't support KEY_SRIGHT. */
 	    case KEY_SRIGHT:
+		shift_held = TRUE;
 #endif
+	    case KEY_RIGHT:
 		retval = sc_seq_or(do_right, *kbinput);
 		break;
 #ifdef KEY_SHOME
 	    /* HP-UX 10-11 and Slang don't support KEY_SHOME. */
 	    case KEY_SHOME:
+		shift_held = TRUE;
 #endif
 	    case KEY_A1:	/* Home (7) on numeric keypad with
 				 * NumLock off. */
@@ -571,14 +577,19 @@
 				 * NumLock off. */
 		retval = ERR;
 		break;
+#ifdef KEY_END
+	    case KEY_END:
+#endif
 	    case KEY_C1:	/* End (1) on numeric keypad with
 				 * NumLock off. */
+		retval = sc_seq_or(do_end, *kbinput);
+		break;
 #ifdef KEY_SEND
 	    /* HP-UX 10-11 and Slang don't support KEY_SEND. */
 	    case KEY_SEND:
+		shift_held = TRUE;
+		retval = sc_seq_or(do_end, *kbinput);
 #endif
-		retval = sc_seq_or(do_end, *kbinput);
-		break;
 #ifdef KEY_BEG
 	    /* Slang doesn't support KEY_BEG. */
 	    case KEY_BEG:	/* Center (5) on numeric keypad with
@@ -696,6 +707,7 @@
 				   * Terminal. */
 			case 'D': /* Esc O 1 ; 2 D == Shift-Left on
 				   * Terminal. */
+			    shift_held = TRUE;
 			    retval = get_escape_seq_abcd(seq[4]);
 			    break;
 			case 'P': /* Esc O 1 ; 2 P == F13 on Terminal. */
@@ -960,6 +972,7 @@
 			case 'B': /* Esc [ 1 ; 2 B == Shift-Down on xterm. */
 			case 'C': /* Esc [ 1 ; 2 C == Shift-Right on xterm. */
 			case 'D': /* Esc [ 1 ; 2 D == Shift-Left on xterm. */
+			    shift_held = TRUE;
 			    retval = get_escape_seq_abcd(seq[4]);
 			    break;
 		    }
@@ -1161,6 +1174,7 @@
 		    case 'b': /* Esc [ b == Shift-Down on rxvt/Eterm. */
 		    case 'c': /* Esc [ c == Shift-Right on rxvt/Eterm. */
 		    case 'd': /* Esc [ d == Shift-Left on rxvt/Eterm. */
+			shift_held = TRUE;
 			retval = get_escape_seq_abcd(seq[1]);
 			break;
 		    case '[':
Index: src/nano.c
===================================================================
--- src/nano.c	(revision 5426)
+++ src/nano.c	(working copy)
@@ -1713,8 +1713,25 @@
 		    } else
 #endif
 		    {
+			/* If Shifted movement occurs, set the mark. */
+			if (shift_held && !openfile->mark_set) {
+			    openfile->mark_set = TRUE;
+			    openfile->mark_begin = openfile->current;
+			    openfile->mark_begin_x = openfile->current_x;
+			    openfile->kind_of_mark = SOFTMARK;
+			}
+
 			/* Execute the function of the shortcut. */
 			s->scfunc();
+
+			/* If Shiftless movement occurs, discard a soft mark. */
+			if (openfile->mark_set && !shift_held &&
+				openfile->kind_of_mark == SOFTMARK) {
+			    openfile->mark_set = FALSE;
+			    openfile->mark_begin = NULL;
+			    openfile->kind_of_mark = NOMARK;
+			    edit_refresh_needed = TRUE;
+			}
 #ifndef DISABLE_COLOR
 			if (f && !f->viewok && openfile->syntax != NULL
 				&& openfile->syntax->nmultis > 0)